Understanding motor controls 
Herman, Sephen L. 
 - 4th ed. 
 -  Cengage Learning, Inc.,  2020 
 - xiv, 641 pages 
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<br/><br/><label>ISBN: </label>978-1-33779868-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electric controllers.
<br/><br/><label>Dewey Class. No.: </label>621.46 H5511 2020