APA Style

Portney, L, G., Watkins, M, P. (2015). Foundations of clinical research : applications to practice (3rd edition). Philadelpia: F.A. Davis Company.

MLA Style

Portney, Leslie, Gross., Watkins, Mary, P.. "Foundations of clinical research : applications to practice". 3rd edition Philadelpia: F.A. Davis Company, 2015. .