APA (7th ed.) Citation

Cobb, D., & Frank, J. (2011). Cardiac auscultation: Normal heart sounds. Medcom.

Chicago Style (17th ed.) Citation

Cobb, David, and Jon Frank. Cardiac Auscultation: Normal Heart Sounds. Cypress, Calif.: Medcom, 2011.

MLA (9th ed.) Citation

Cobb, David, and Jon Frank. Cardiac Auscultation: Normal Heart Sounds. Medcom, 2011.