Maugham, W. S. (1968). Ashenden, or, The British agent. Heron Books.
Lua i Stíl Chicago (17ú heag.)Maugham, W. Somerset. Ashenden, or, The British Agent. London: Heron Books, 1968.
Lua MLA (9ú heag.)Maugham, W. Somerset. Ashenden, or, The British Agent. Heron Books, 1968.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.