Trevelyan, G. M. (1947). A reader's guide: Biography. Cambridge Univ. Press.
Lua i Stíl Chicago (17ú heag.)Trevelyan, G. M. A Reader's Guide: Biography. London [u.a.]: Cambridge Univ. Press, 1947.
Lua MLA (8ú heag.)Trevelyan, G. M. A Reader's Guide: Biography. Cambridge Univ. Press, 1947.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.