Burch, George Edward,  1910- <br/><br/>
A primer of electrocardiography / 
by George E. Burch and Travis Winsor 
 - 6th ed. 
 - Philadelphia :  Lea & Febiger,  1972 
 - 292 p. :  ill. ;  25 cm. 
<br/><br/><label>ISBN: </label>0812103378 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electrocardiography