Trích dẫn APA

G. Portney, L., & Mary P. Watkins. (2015). Foundations of clinical research applications to practice (3rd Edition.). Philadelphia: F.A Davis Company.

Trích dẫn theo kiểu Chicago

G. Portney, Leslie., and Mary P. Watkins. Foundations of Clinical Research Applications to Practice. 3rd Edition. Philadelphia: F.A Davis Company, 2015.

Trích dẫn MLA

G. Portney, Leslie., and Mary P. Watkins. Foundations of Clinical Research Applications to Practice. 3rd Edition. Philadelphia: F.A Davis Company, 2015.

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