APA (7th ed.) Citation

Pickover, C. A. (1998). The science of aliens (1. ed.). Basic Books.

Chicago Style (17th ed.) Citation

Pickover, Clifford A. The Science of Aliens. 1. ed. New York, NY: Basic Books, 1998.

MLA (9th ed.) Citation

Pickover, Clifford A. The Science of Aliens. 1. ed. Basic Books, 1998.