Electrocardiography in infants and children / 
Editors ; Donald E. Cassels and Robert F. Ziegler 
 - New York :  Grune & Stratton,  1966 
 - 366 p. :  ill. ;  25 cm. 
<br/><br/><label>LCCN: </label>65-025510 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electrocardiography<br/>Heart diseases--In infancy and childhood<br/>Heart diseases--Diagnosis