APA (7th ed.) Citation

Gale Group & Hockey, T. A. (2007). The biographical encyclopedia of astronomers. Springer.

Chicago Style (17th ed.) Citation

Gale Group and Thomas A. Hockey. The Biographical Encyclopedia of Astronomers. New York, N.Y: Springer, 2007.

MLA (9th ed.) Citation

Gale Group and Thomas A. Hockey. The Biographical Encyclopedia of Astronomers. Springer, 2007.

Warning: These citations may not always be 100% accurate.