APA (7th ed.) Citation

Marriott, H. J. L. (1977). Practical electrocardiography. Williams & Wilkins.

Chicago Style (17th ed.) Citation

Marriott, Henry J. L. Practical Electrocardiography. Baltimore: Williams & Wilkins, 1977.

MLA (9th ed.) Citation

Marriott, Henry J. L. Practical Electrocardiography. Williams & Wilkins, 1977.