Cita APA (7th ed.)

Leavitt, D. (1987). The lost language of cranes. Penguin.

Cita Chicago (17th ed.)

Leavitt, David. The Lost Language of Cranes. Harmondsworth: Penguin, 1987.

Cita MLA (8th ed.)

Leavitt, David. The Lost Language of Cranes. Penguin, 1987.