Cita APA (7th ed.)

Marriott, H. J. L. (1968). Practical electrocardiography. Williams & Wilkins.

Cita Chicago (17th ed.)

Marriott, Henry J. L. Practical Electrocardiography. Baltimore: Williams & Wilkins, 1968.

Cita MLA (9th ed.)

Marriott, Henry J. L. Practical Electrocardiography. Williams & Wilkins, 1968.