APA (7th ed.) Citation

Armstrong, W. F., & Ryan, T. (2010). Feigenbaum's echocardiography: [includes 4 fully narrated lectures plus 1300+ echo clips] (7. ed.). Lippincott, Williams & Wilkins.

Chicago Style (17th ed.) Citation

Armstrong, William F., and Thomas Ryan. Feigenbaum's Echocardiography: [includes 4 Fully Narrated Lectures Plus 1300+ Echo Clips]. 7. ed. Philadelphia [u.a.]: Lippincott, Williams & Wilkins, 2010.

MLA (9th ed.) Citation

Armstrong, William F., and Thomas Ryan. Feigenbaum's Echocardiography: [includes 4 Fully Narrated Lectures Plus 1300+ Echo Clips]. 7. ed. Lippincott, Williams & Wilkins, 2010.