Cita APA (7th ed.)

Clark, M. H. (1980). The cradle will fall. Pocket Books.

Cita Chicago (17th ed.)

Clark, Mary Higgins. The Cradle Will Fall. London: Pocket Books, 1980.

Cita MLA (8th ed.)

Clark, Mary Higgins. The Cradle Will Fall. Pocket Books, 1980.