MLA

Verster, Joris C, et al. Drug Abuse and Addiction In Medical Illness. Springer New York, 2012.

APA

Verster, J. C, Brady, K., Conrod, P., & Galanter, M. (2012). Drug Abuse and Addiction in Medical Illness. Springer New York.

Chicago

Verster, Joris C., Kathleen Brady, Patricia Conrod, and Marc Galanter. Drug Abuse and Addiction In Medical Illness. : Springer New York, 2012.