TY - BOOK AU - BUREAN OF INDIAN STANDARDS INSTITUTION TI - IS:1501(Part 1): 1984 Part1 HV 100 IS:1501(Part 1): 1984 PY - 1985/// CY - New Delhi PB - BIS, Manak Bhavan 9 Bahadur shah Zafar marg KW - IS:1501(Part 1): 1984 ER -