Cita APA (7th ed.)

Marriott, H. J. L. (1968). Practical electrocardiography (4 ed.). The Williams & Wilkins Company.

Cita Chicago (17th ed.)

Marriott, Henry J. L. Practical Electrocardiography. 4 ed. Baltimore: The Williams & Wilkins Company, 1968.

Cita MLA (9th ed.)

Marriott, Henry J. L. Practical Electrocardiography. 4 ed. The Williams & Wilkins Company, 1968.