ECMW ― V. E. Nash-Williams, The Early Christian Monuments of Wales (Cardiff, 1950).
ECPM ― S. Cruden, The Early Christian and Pictish Monuments of Scotland (Edinburgh, 1957).
EGC ― T. H. Bindley, The Epistle of the Gallican Churches (London, 1900).
EHC ― L. Duchesne, The Early History of the Church. Английский перевод с первого издания, репринт (London, 1950).
EIHM ― T. F. O'Rahilly, Early Irish History and Mythology (Dublin, 1946).
ELL ― Myles Dillon, Early Irish Literature (Chicago, 1948).
EIS ― Early Irish Society, edited by Myles Dillon (Dublin, 1954).
ES ― H. M. Chadwick, Early Scotland (Cambridge, 1949).
ESEM ― Essays and Studies presented to Professor E. MacNeill, edited by Rev. J. Ryan (Dublin, 1940).
ESSH ― A. O. Anderson, Early Sources of Scottish History, 2 vols. (Edinburgh, 1922).
EWP ― Ifor Williams, Lectures on Early Welsh Poetry (Dublin, 1944).
FABW ― W. F. Skene, The Four Ancient Books of Wales, 2 vols. (Edinburgh, 1868). Vol. I Translation, Vol. II Welsh texts.
FCL ― The Fate of the Children of Lir, edited and translated by R. J. O'Duffy (5lh ed., Dublin, 1908).
FCT ― The Fate of the Children of Tuireann, edited and translated by R. J. O'Duffy (Dublin, 1901).
FCU ― The Fate of the Children of Uisneach, edited and translated by R. J. O'Duffy (Dublin, 1914).
FEIA ― C. Fox, A Find of the Early Iron Age from Llyn Cerrig Bach, Anglesey (Cardiff, 1946).
Fontes ― I. Zwicker, Fontes Historiae Religionis Celticae, 3 parts (Berlin, 1 934–36).
FPRB ― P. Salway, The Frontier People of Romain Britain (Cambridge, 1965).
FWS ― Festschrift fiir Whitley Stokes (Leipzig, 1900).
GC ― Elie Griffe, La Gaule Chretienne a l'Epoque Romaine, I (Paris et Toulouse, 1947).
GL ― H. M. and N. K. Chadwick, The Growth of Literature, 3 vols. (Cambridge, 1932–40).
GLL ― M. Manitius, Geschichte der lateinische Literatur des Mittelalters, 3 vols. (Munich, 1911, 1923, 1931).
Groupement ― H. Pedersen, Le Groupement des Dialectes Indo-Europeens (Kоbenhavn, 1925).
HB ― H. Waquet, Histoire de la Bretagne (Paris, 1950).
HB ― L. A. Le Moyne de la Borderie, Histoire de la Bretagne, 6 vols. (Rennes et Paris, 1896–1914).
HB ― E. Durtelle de Saint-Sauveur, Histoire de la Bretagne, 2 vols. (4th ed., Rennes, 1947).
HB ― A. Rebillon, Histoire de la Bretagne (Paris, 1957).
Heldensage ― R. Thurneysen, Die irische Helden- und Konigsage (Halle, 1921).
HG ― C. Jullian, Histoire de la Gaule, 8 vols (Paris, 1908–1926).
Hill-Forts ― R. E. M. Wheeler and K. Richardson, Hill-Forts of Northern France (Oxford, 1957).
HIM ― R. H. Kinvig, A History of the Isle of Man (2"J ed., Liverpool, 1950).
Hist. Brit. ― The Historia Brittonum by Nennius. Ed. by T. Mommsen, Monumenta Germaniae Historica, auctores antiquissimi, t. XIII (Berlin, 1898, reprinted 1961); также by F. Lot (Paris, 1934). Translated by A. W. Wade-Evans, Nennius's History of the Britons (London, 1938). — Русский перевод: А.С.Бобович, Ненний, История бриттов в книге: Гальфрид Монмутский, История бриттов. Жизнь Мерлина, M., 1984.
HW ― J. E. Lloyd, History of Wales, 2 vols. (3rJ ed., London, 1939).
HWL ― T. Parry, A History of Welsh Literature. Translated by H. I. Bell (Oxford, 1955).
IA ― F. Henry, Irish Art in the Early Christian Period to A. D. 800 (London, 1965).
IAECP ― F. Henry, Irish Art in the Early Christian Period (2nd ed., London 1947).
ICCS ― Proceedings of the International Congress of Celtic Studies (Dublin, 1962).
IDPP ― T. F. O'Rahilly, Irish Dialects Past and Present (London, 1932).
IHC ― F. Henry, Irish High Crosses (Dublin, 1964).
IM ― J. Ryan, Irish Monasticism (Dublin and Cork, 1931).
Invasions ― L. Musset, Les Invasions: Les Vagues Germaniques (Paris, 1965).
IPD ― C. S. Boswell, An Irish Precursor of Dante (London, 1908).
IPG ― E. MacNeill, Early Irish Population Groups (PRIA XXIX C 1911).
Irland ― L. Bieler, Irland (Lausanne and Freiburg, 1961). Английское издание Ireland (London, 1963).
Ir. T ― Irische Texte, ed. W. Stokes and E. Windisch (Leipzig, 1880–1905).
IT ― R. Flower, The Irish Tradition (Oxford, 1947).
LB ― Leabhar Breac, the Speckled Book, facsimile edition by S. Ferguson (Dublin, 1876).
LBS ― S. Baring-Gould and J. Fisher, The Lives of the British Saints, 4 vols. (London, 1907–1913).
LC ― Lebor na Cert (The Book of Rights), edited and translated by Myles Dillon (Dublin, 1962).
Leс. ― The Book of Lecan, facsimile edition by Kathleen Mulchrone (Dublin, 1937).
Legende ― J. Marx, La Legende Arthurienne et le Graal (Paris, 1952).
LHEB ― K. H. Jackson, Language and History in Early Britain (Edinburgh, 1953).
LIFC ― K. Meyer, Learning in Ireland in the Fifth Century and the Transmission of Letters (Dublin, 1913).
LIS ― C. Plummer, Bethada Naem nErenn (Lives of Irish Saints), 2 vols. (Oxford, 1922).
LL ― The Book of Leinster, facsimile edition by R. Atkinson (Dublin, 1880).
LP ― M. P. Charlesworth, The Lost Province (Cardiff, 1949).
LRB ― A. Birley, Life in Roman Britain (London, 1964).
LRE ― A. H. M. Jones, The Later Roman Empire, 3 vols., + один том с картами (Oxford, 1964).
