Clark, M. H. (1980). The cradle will fall. Pocket Books.
Lua i Stíl Chicago (17ú heag.)Clark, Mary Higgins. The Cradle Will Fall. London: Pocket Books, 1980.
Lua MLA (8ú heag.)Clark, Mary Higgins. The Cradle Will Fall. Pocket Books, 1980.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.