The Biographical Encyclopedia of Astronomers

MLA

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

APA

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

Chicago

Hockey, Thomas, Marvin Bolt, Katherine Bracher, Thomas A Hockey, Richard A Jarrell, Jordan D Marché, JoAnn Palmeri, et al. The Biographical Encyclopedia of Astronomers. : Springer New York, 2007.