APA (7th ed.) Citation

(1990). Doppler echocardiography. Saunders.

Chicago Style (17th ed.) Citation

Doppler Echocardiography. Philadelphia u.a: Saunders, 1990.

MLA (9th ed.) Citation

Doppler Echocardiography. Saunders, 1990.

Warning: These citations may not always be 100% accurate.