Aehlert, Barbara, <br/><br/>
ECGs made easy / 
Barbara Aehlert, MSEd, BSPA, RN. 
 - Sixth edition. 
 - ST.Louis,Missouri  Elservier  ©2018 
 - x, 326 pages:   illustrations;  28 cm 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9780323401302 (paperback.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electrocardiography--Handbooks, manuals, etc.
<br/><br/><label>LC Class. No.: </label>RC683.5 AEH