Whelan, P. M. <br/><br/>
Questions on principles of physics / 
P.M Whelan 
 -  1979. 
 - xi, 234 pages.  illustrations. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>9780719536618 
<br/><br/><label>Subjects--Personal Names: </label>