Gaya APA

Treece, E, W, T, J, W. (1986). Elements of research in nursing. -- 4th ed. . St. Louis: The C. V. Mosby Co..

Gaya MLA

Treece, Eleanor, Walters, Treece,, James, William. "Elements of research in nursing. -- 4th ed.". St. Louis: The C. V. Mosby Co., 1986. Text.