APA način citiranja

Gardner, M., & Schroeder, T. (1997). Puzzling questions about the solar system. Dover Publications.

Čikaški stil citiranja

Gardner, Martin, i Ted Schroeder. Puzzling Questions About the Solar System. Mineola, N.Y.: Dover Publications, 1997.

MLA način citiranja

Gardner, Martin, i Ted Schroeder. Puzzling Questions About the Solar System. Dover Publications, 1997.