APA (7th ed.) Citation

Graybiel, A. (1952). Electrocardiography in practice. Saunders.

Chicago Style (17th ed.) Citation

Graybiel, Ashton. Electrocardiography in Practice. Philadelphia: Saunders, 1952.

MLA (9th ed.) Citation

Graybiel, Ashton. Electrocardiography in Practice. Saunders, 1952.