Berg, D. (1966). The binding force. Walker.
Lua i Stíl Chicago (17ú heag.)Berg, Daniel. The Binding Force. New York: Walker, 1966.
Lua MLA (9ú heag.)Berg, Daniel. The Binding Force. Walker, 1966.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.