strength of materials 
Pytel, Andrew. 
 - 4th ed. 
 -  Harper Collins.  1987 
 - xiii, 594 p. 
<br/><br/>
<br/><br/><label>ISBN: </label>0-201-32742-2 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Strength of materials.
<br/><br/><label>Dewey Class. No.: </label>620.112 P99s 1987