APA (7th ed.) Citation

Graybiel, A., White, P. D., Wheeler, L., & Williams, C. (1946). Electrocardiography in practice (2nd ed.). W. B. Saunders.

Chicago Style (17th ed.) Citation

Graybiel, Ashton, Paul Dudley White, Louise Wheeler, and Conger Williams. Electrocardiography in Practice. 2nd ed. Philadelphia [etc.]: W. B. Saunders, 1946.

MLA (9th ed.) Citation

Graybiel, Ashton, et al. Electrocardiography in Practice. 2nd ed. W. B. Saunders, 1946.