MLA

Proschan, Michael A, et al. Statistical Monitoring of Clinical Trials. Springer New York, 2006.

APA

Proschan, M. A, Gail, M., Krickeberg, K., Lan, K. K. Gordon, & Wittes, J. Turk. (2006). Statistical Monitoring of Clinical Trials. Springer New York.

Chicago

Proschan, Michael A., M Gail, K Krickeberg, K. K. Gordon Lan, and Janet Turk Wittes. Statistical Monitoring of Clinical Trials. : Springer New York, 2006.