Cita APA (7th ed.)

Ponsonby, D. A. (1972). It began before Noah. M. Joseph.

Cita Chicago (17th ed.)

Ponsonby, D. A. It Began Before Noah. London: M. Joseph, 1972.

Cita MLA (8th ed.)

Ponsonby, D. A. It Began Before Noah. M. Joseph, 1972.