Aehlert, Barbara. Pocket reference for ECGs made easy - 5th ed. - St. Louis Elsevier 2013 - vii, 123 p. ill. ;index ISBN: 9780323101080 Subjects--Topical Terms: Electrocardiography- handbooks methodArrhythmias, CardiacElectrocardiography. LC Class. No.: MED RC638.5.E5 / A392