Hibbeler, R. C. <br/><br/>
Engineering mechanics, statics   
R. C. Hibbeler. 
 - 2nd. ed. 
 - New York  Macmillan publishing Co., Inc.  1978 
 - vii, 482p. 
<br/><br/><label>ISBN: </label>0023540206 
<br/><br/><label>Dewey Class. No.: </label>620.103  / N78