Pytel, Andrew. Strength of materials / Andrew Pytel, Ferdinand L. Singer. - 4th ed. [International student edition] - New York : Harper & Row, c1987. - xiii, 594 p. : ill., figs., tables ; 21 cm. Includes index. ISBN: 0486607550 LCCN: 86018355 Subjects--Topical Terms: Strength of materials. LC Class. No.: TA405 / .P98 1987 Dewey Class. No.: 620.112/ P999s