Dyfyniad APA

Portney, L. G., & Watkins, M. P. (1993). Foundations of clinical research: Applications to practice. Appleton & Lange.

Dyfyniad Arddull Chicago

Portney, Leslie Gross, and Mary P. Watkins. Foundations of Clinical Research: Applications to Practice. Norwalk, Conn: Appleton & Lange, 1993.

Dyfyniad MLA

Portney, Leslie Gross, and Mary P. Watkins. Foundations of Clinical Research: Applications to Practice. Appleton & Lange, 1993.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.