Rapid interpretation of EKG's :  a programmed course / 
Dale Dubin. 
 - 3rd ed. 
 - Tampa :  Cover Publishing Company,  1974. 
 - xi, 295 p. :  ill . ;  26 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0912912006 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electrocardiography--Programmed instruction.<br/>Electrocardiography.<br/>Programmed Instruction.