Hartog, J. P. Den. 1901-1989. Advanced strength of materials / J. P. Den Hartog. - New York : McGraw-Hill, c1952. - ix,379p. : ill. ; 23 cm. Includes index. english LCCN: 51012599 Subjects--Topical Terms: Strength of materials. LC Class. No.: TA405 / .D38 Dewey Class. No.: 620.11/HAA