Cita APA (7a ed.)

Labovitz, A. J., & Williams, G. A. (1988). Doppler echocardiography: The quantitative approach (2nd ed.). Lea & Febiger.

Cita Chicago Style (17a ed.)

Labovitz, Arthur J., y George A. Williams. Doppler Echocardiography: The Quantitative Approach. 2nd ed. Philadelphia: Lea & Febiger, 1988.

Cita MLA (9a ed.)

Labovitz, Arthur J., y George A. Williams. Doppler Echocardiography: The Quantitative Approach. 2nd ed. Lea & Febiger, 1988.