APA (7th ed.) Citation

Connolly, B., & Anderson, R. (1988). First contact. Penguin Books.

Chicago Style (17th ed.) Citation

Connolly, Bob, and Robin Anderson. First Contact. New York, N.Y., U.S.A.: Penguin Books, 1988.

MLA (9th ed.) Citation

Connolly, Bob, and Robin Anderson. First Contact. Penguin Books, 1988.