Cita APA

Hockey, T., Trimble, V., Williams, T. R., Bracher, K., Jarrell, R. A., Marché, J. D., . . . Bolt, M. (2007). The Biographical Encyclopedia of Astronomers. Springer New York.

Citación estilo Chicago

Hockey, Thomas., Virginia Trimble, Thomas R. Williams, Katherine Bracher, Richard A. Jarrell, Jordan D. Marché, F. Jamil Ragep, JoAnn Palmeri, and Marvin Bolt. The Biographical Encyclopedia of Astronomers. New York, NY: Springer New York, 2007.

Cita MLA

Hockey, Thomas., et al. The Biographical Encyclopedia of Astronomers. New York, NY: Springer New York, 2007.