Cita APA (7th ed.)

Bills, G. (1996). Fearful Symmetry (1. Auflage.). Penguin books.

Cita Chicago (17th ed.)

Bills, Greg. Fearful Symmetry. 1. Auflage. New York: Penguin books, 1996.

Cita MLA (8th ed.)

Bills, Greg. Fearful Symmetry. 1. Auflage. Penguin books, 1996.