Cita APA (7th ed.)
American Heart Association, Blumgart, H. L., & Parris, E. E. (1959). Circulation: Official journal of the American Heart Association. Grune and Stratton.
Cita Chicago (17th ed.)
American Heart Association, Herrman Ludwig Blumgart, i Edith E. Parris. Circulation: Official Journal of the American Heart Association. New York, London: Grune and Stratton, 1959.
Cita MLA (9th ed.)
American Heart Association, et al. Circulation: Official Journal of the American Heart Association. Grune and Stratton, 1959.
Atenció: Aquestes cites poden no estar 100% correctes.