Dyfyniad APA

Petersdorf, R. G., & Harrison, T. R. (1983). Harrison's Principles of internal medicine: Pretest self-assessment and review. McGraw-Hill Book Co., Health Professions Division, PreTest Series.

Dyfyniad Arddull Chicago

Petersdorf, Robert G., and Tinsley Randolph Harrison. Harrison's Principles of Internal Medicine: Pretest Self-assessment and Review. New York: McGraw-Hill Book Co., Health Professions Division, PreTest Series, 1983.

Dyfyniad MLA

Petersdorf, Robert G., and Tinsley Randolph Harrison. Harrison's Principles of Internal Medicine: Pretest Self-assessment and Review. McGraw-Hill Book Co., Health Professions Division, PreTest Series, 1983.

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