Fast, H. (1988). The pledge. Dell Pub.
Lua i Stíl Chicago (17ú heag.)Fast, Howard. The Pledge. New York: Dell Pub, 1988.
Lua MLA (9ú heag.)Fast, Howard. The Pledge. Dell Pub, 1988.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.