Wagner, G. A. (1968). On the wisdom of words. G. Allen and Unwin.
Lua i Stíl Chicago (17ú heag.)Wagner, Geoffrey Atheling. On the Wisdom of Words. London: G. Allen and Unwin, 1968.
Lua MLA (9ú heag.)Wagner, Geoffrey Atheling. On the Wisdom of Words. G. Allen and Unwin, 1968.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.