MLA

Wilson, Clive G, and Patrick J Crowley. Controlled Release In Oral Drug Delivery. Springer US, 2011.

APA

Wilson, C. G, & Crowley, P. J. (2011). Controlled Release in Oral Drug Delivery. Springer US.

Chicago

Wilson, Clive G., and Patrick J Crowley. Controlled Release In Oral Drug Delivery. : Springer US, 2011.