Riseman, Joseph E. F. <br/><br/>
P-Q-R-S-T; a guide to electrocardiogram interpretation. 

 - 3d ed. 
 - New York,  Macmillan,  1957 
 - 123 p.  ill. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electrocardiography
<br/><br/><label>National Library of Medicine Call No.: </label>WG 140  / .R57 1957