Schamroth, Leo <br/><br/>
An introduction to electrocardiography 
by L. Schamroth 
 - 4th ed. 
 - Oxford  Blackwell Scientific Publications  1971 
 - 212 p. : ill. ; 25 cm. 
<br/><br/> Distributed in the U.S.A. by F. A. Davis Co., Philadelphia. 
<br/><br/><label>ISBN: </label>0632084405 
<br/><br/><label>LCCN: </label>72-304587 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electrocardiography