Cita APA (7th ed.)

Ravin, A. (1967). Auscultation of the heart. Year Book Medical Pub.

Cita Chicago (17th ed.)

Ravin, Abe. Auscultation of the Heart. Chicago: Year Book Medical Pub, 1967.

Cita MLA (9th ed.)

Ravin, Abe. Auscultation of the Heart. Year Book Medical Pub, 1967.