BUREAU OF INDIAN STA INDIAN STANDARD SCHEDULES FOR WROUGHT STEELS : PART 4 ALLOY STEELS ( ALLOY CONSTRUCTIONAL AND SPRING - 1st rev. ed. 1988 - NEW DELHI BUREAU OF INDIAN STANDARDS. - 12 Subjects--Topical Terms: WROUGHT STEELS Dewey Class. No.: 620.17.17 / BUR