APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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