Mott-Smith, Morton. <br/><br/>
The concept of energy simply explained / 
by Morton Mott-Smith ; illustrated by Emil Kosa. 
 - New York :  Dover,  [c1964]. 
 - viii, 215 p. :  ill. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Force and energy.<br/>Power (Mechanics).