APA (7th ed.) Citation

Simonson, E. (1972). Evaluation of cardiac performance in exercise. American Journal of Cardiology, 30, 722.

Chicago Style (17th ed.) Citation

Simonson, E. "Evaluation of Cardiac Performance in Exercise." American Journal of Cardiology 30 (1972): 722.

MLA (9th ed.) Citation

Simonson, E. "Evaluation of Cardiac Performance in Exercise." American Journal of Cardiology, vol. 30, 1972, p. 722.