Παραπομπή σε μορφή APA (7η εκδ.)

Bierring, W. L. (1957). Medical licensure examinations: Topical summaries and questions¨ (8th edition.). J. B. Lippincott Company.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Bierring, Walter L. Medical Licensure Examinations: Topical Summaries and Questions¨. 8th edition. Philadelphia: J. B. Lippincott Company, 1957.

Παραπομπή σε μορφή MLA (8th εκδ.)

Bierring, Walter L. Medical Licensure Examinations: Topical Summaries and Questions¨. 8th edition. J. B. Lippincott Company, 1957.