Tvevad, J. (1967) “G. Kitson Clark and G. R. Elton: Guide to Research Facilities in History in the Universities of Great Britain and Ireland. 2nd edn. Cambridge University Press, 1965. 55 s. 7 sh. 6 d”., Historisk Tidsskrift, 12. Tilgængelig hos: https://tidsskrift.dk/historisktidsskrift/article/view/50773 (Set: 16 december 2025).