Cita APA (7th ed.)
Leavitt, D. (1987). The lost language of cranes. Penguin books.
Cita Chicago (17th ed.)
Leavitt, David. The Lost Language of Cranes. London: Penguin books, 1987.
Cita MLA (9th ed.)
Leavitt, David. The Lost Language of Cranes. Penguin books, 1987.
Atenció: Aquestes cites poden no estar 100% correctes.