Cita APA (7th ed.)

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.

Cita Chicago (17th ed.)

Petersdorf, Robert G., i 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.

Cita MLA (8th ed.)

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