Willems, Nicholas. Strength of materials / Nicholas Willems, John T. Easley, Stanley T. Rolfe ; [cover designed by Charles A. Carson]. - xviii, 508 pages : illustrations ; 24 cm. Includes index. ISBN: 0070702977 LCCN: 80014657 Subjects--Topical Terms: Strength of materials. LC Class. No.: TA405 / .W588 Dewey Class. No.: 620.112