Willems, Nicholas. <br/><br/>
Strength of materials / 
by Nicholas Willems, John T. Easley and Stanley T. Rolfe. 
 - New York, N.Y. :  McGraw-Hill,  1981. 
 - xviii, 508 p. 
<br/><br/><label>ISBN: </label>0070702977 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Strength of materials.