Bullens, D. K. Steel and its heat treatment / D. K. Bullens and the metallurgical staff of the Battelle Memorial Institute. - 5th ed. - New York: J. Wiley, c1948-49. - 3 v. illus. 24 cm. Includes Index. Includes bibliographies. English. LCCN: 48005394 Subjects--Topical Terms: Steel.Steel--Heat treatment. LC Class. No.: TN731 / .B78 Dewey Class. No.: 669.142/BUS