Europe’s Barbarians (Longman Pearson, Harlow, 2009), 344pp. (Italian translation as I Barbari, by Società Editrice Il Mulino, Bologna, 2011)
Britain in the First Millennium (Edward Arnold, London, 2001), 320pp.
The Franks (‘The Peoples of Europe’ series: Blackwells, Oxford, 1988), 265pp. (Dutch translation, as De Franken, published by Ambo/Baarn, in 1990; Czech translation as Frankové, published by Nakladatelství, Lidové Noviny, 1997; Italian translation, as I Franchi. Agli Albori dell’Europa. Storia e Mito, published by Edizioni Culturali Internazionale Genova, Genoa 1998)
Gregory of Tours: Life of the Fathers (translation, introduction and commentary) (Translated Texts for Historians: University of Liverpool Press, 1985), 180pp (second revised edition published in 1991; second edition with new foreword, 30th Anniversary edition, 2015).
The Origins of France: from Clovis to the Capetians, AD 500-1000 (Macmillan, London, 1982), 253pp. Translation, as Les Origines de la France, published by Editions Errance, Paris, 1986, 271pp.
Ed. Visigothic Spain: New Approaches (Oxford University Press, 1980), 303pp.
The Merovingian Archaeology of South-West Gaul, 2 vols (British Archaeological Reports, Suppl. Series 25, Oxford, 1977), 529pp.
Our Ancient Heritage (Educational Company of Ireland, Dublin, 1977), 280pp.
Transl. (with Columba James): Lucien Musset, The Germanic Invasions: the Making of Europe AD 400-600 (Elek, London, 1975), xiii + 287pp.