Armstrong, M. (1940). Trelawny: A man's life. The Macmillan.
Lua i Stíl Chicago (17ú heag.)Armstrong, Margaret. Trelawny: A Man's Life. New York: The Macmillan, 1940.
Lua MLA (9ú heag.)Armstrong, Margaret. Trelawny: A Man's Life. The Macmillan, 1940.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.