Nelson, Clifford R.. <br/><br/>
Energy :    its forms and changes /  
Clifford R. Nelson, with the collaboration of Paul F. Brandwein. 
 - New York :    Harcourt, Brace Jovanovich,    [1970]. 
 - 85 p. :    ill. ;    27 cm. 
 - Concepts in science. .
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0153668105 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Force and energy.
<br/><br/><label>Dewey Class. No.: </label>531.6