APA (7th ed.) Citation

Asher, M., & Peru, M. (1988). Impossible journey: Two against the Sahara. Viking Penguin.

Chicago Style (17th ed.) Citation

Asher, Michael, and Mariantonietta Peru. Impossible Journey: Two Against the Sahara. New York: Viking Penguin, 1988.

MLA (9th ed.) Citation

Asher, Michael, and Mariantonietta Peru. Impossible Journey: Two Against the Sahara. Viking Penguin, 1988.

Warning: These citations may not always be 100% accurate.