Eckardt, Ottmar W. Strength of materials / [by] Ottmar W. Eckardt. - New York : Holt, Rinehart and Winston, [1969] ISBN: 0030692458 LCCN: 68031655 Subjects--Topical Terms: Strength of materials. LC Class. No.: TA405 / .E25 Dewey Class. No.: 620.1/12