Engineering mechanics statics 
Hibbeler, R.C. 
 - SI Edition. 
 -  Prentice Hall.  1997 
 - xv,574 pages. 
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<br/><br/><label>ISBN: </label>0-13-599598-1 
<br/><br/><label>Dewey Class. No.: </label>620.107 H52l 1997