Cita APA (7th ed.)

Davies, R. (1986). What's bred in the bone. Penguin Books.

Cita Chicago (17th ed.)

Davies, Robertson. What's Bred in the Bone. Ontario: Penguin Books, 1986.

Cita MLA (9th ed.)

Davies, Robertson. What's Bred in the Bone. Penguin Books, 1986.