Bellet. (1972). Essentials of arrhyhias.
Cita Chicago (17th ed.)Bellet. Essentials of Arrhyhias. 1972.
Cita MLA (9th ed.)Bellet. Essentials of Arrhyhias. 1972.
Atenció: Aquestes cites poden no estar 100% correctes.
Cita APA (7th ed.)