Riley, Peter D. <br/><br/>
Forces & friction 

 -  Smart Apple Media,  2008 
 - 32 p. 
<br/><br/><label>ISBN: </label>9780749696061 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Force and energy.--Magnet.<br/>Kuvvet.--Enerji.--Mıknatıs.
<br/><br/><label>Dewey Class. No.: </label>530 RIL/F