Blake, Thomas M. (Thomas Mathews), 1920- <br/><br/>
Introduction to electrocardiography 
by Thomas M. Blake 
 - 2nd ed. 
 - New York  Appleton Century-Crofts  1972 
 - 218 p. : ill. ; 22 cm. 
<br/><br/><label>LCCN: </label>78-171665 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electrocardiography