Armstrong, M. L.   . <br/><br/>
Electrocardiograms a Systematic Method of reading them /   Textual Documents 

 - 5th /   . 
 -  K. M. Varghese ,   1985. 
 - 407 ;    
<br/><br/><label>ISBN: </label>  
<br/><br/><label>Subjects--Index Terms: </label>Medicine  Medical Science 
<br/><br/><label>Dewey Class. No.: </label>616.120754  / ARM