Παραπομπή σε μορφή APA (7η εκδ.)

Friedman, P. C. (1983). Current literature review in internal medicine: Study questions and annotated answers keyed to the most significant internal medicine literature of 1980.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Friedman, Paul C. Current Literature Review in Internal Medicine: Study Questions and Annotated Answers Keyed to the Most Significant Internal Medicine Literature of 1980. Norwalk, CT, 1983.

Παραπομπή σε μορφή MLA (9th εκδ.)

Friedman, Paul C. Current Literature Review in Internal Medicine: Study Questions and Annotated Answers Keyed to the Most Significant Internal Medicine Literature of 1980. 1983.