MLA

Ehrenpreis, Eli D, et al. Anal and Rectal Diseases. Springer New York, 2012.

APA

Ehrenpreis, E. D, Avital, S., & Singer, M., & Singer, M. (2012). Anal and Rectal Diseases. Springer New York.

Chicago

Ehrenpreis, Eli D., Shmuel Avital, Marc Singer, and Mark Singer. Anal and Rectal Diseases. : Springer New York, 2012.