APA (7th ed.) Citation

PR, H., WS, A., & J, E. (1973). Digitalis as an antianginal agent. Chest, 64(4), 439. https://doi.org/10.1378/chest.64.4.439

Chicago Style (17th ed.) Citation

PR, Harding, Aronow WS, and Eisenman J. "Digitalis as an Antianginal Agent." Chest 64, no. 4 (1973): 439. https://doi.org/10.1378/chest.64.4.439.

MLA (9th ed.) Citation

PR, Harding, et al. "Digitalis as an Antianginal Agent." Chest, vol. 64, no. 4, 1973, p. 439, https://doi.org/10.1378/chest.64.4.439.