Graybiel, A. Electrocardiography in practice: Saunders.
Cita Chicago Style (17a ed.)Graybiel, Ashton. Electrocardiography in Practice: Saunders.
Cita MLA (9a ed.)Graybiel, Ashton. Electrocardiography in Practice: Saunders.
Precaución: Estas citas no son 100% exactas.