Cita APA (7a ed.)

Quentin, P. (1955). Puzzle for fiends: A Peter Duluth mystery. Penguin Books.

Cita Chicago Style (17a ed.)

Quentin, Patrick. Puzzle for Fiends: A Peter Duluth Mystery. Harmondsworth: Penguin Books, 1955.

Cita MLA (9a ed.)

Quentin, Patrick. Puzzle for Fiends: A Peter Duluth Mystery. Penguin Books, 1955.