Cita APA (7a ed.)

Cottrell Boyce, F. (2019). Sputnik's guide to life on Earth (First U.S. paperback edition.). Walden Pond Press.

Cita Chicago Style (17a ed.)

Cottrell Boyce, Frank. Sputnik's Guide to Life on Earth. First U.S. paperback edition. New York, NY: Walden Pond Press, 2019.

Cita MLA (8a ed.)

Cottrell Boyce, Frank. Sputnik's Guide to Life on Earth. First U.S. paperback edition. Walden Pond Press, 2019.

Precaución: Estas citas no son 100% exactas.