Wartak, Joseph. <br/><br/>
Simplified vectorcardiography. 

 - Philadelphia,  Lippincott  1970 
 - x,182p.  ill. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Vectorcardiography.
<br/><br/><label>LC Class. No.: </label>RC683.5  / v4W3