APA-viite (7. p.)

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

Chicago-viite (17. p.)

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

MLA-viite (9. p.)

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