Kennedy, W. <br/><br/>
Progressive problems for physics 'O' / 
William Kennedy. 
 - London :  Heinemann Educational Books,  1980. 
 - 120 p. :  ill. 
<br/><br/><label>ISBN: </label>043567580X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physics--Problems, exercises, etc.