TY - BOOK AU - Bureau of Indian Standards TI - Amendment No - 1 January 1981: Specification for Power Transformers: Part - 1 General (IS : 2026 (Part - 1) - 1977) U1 - IS : 2026 (Part-1) - 1977 PY - 1981/// CY - New Delhi PB - Bureau of Indian Standards KW - Indian Standard - IT N1 - IS : 2026 (Part-1) - 1977 ER -