TY - BOOK ED - Bharat Heavy Electricals Limited. Non Conventional Energy Sources Department (Hyderabad) TI - Systems based on non-conventional energy sources: a compendium of developmental activities U1 - 333.79 21st PY - 1987/// CY - Hyderabad PB - BHEL KW - Power resources; Energy development-Law and legislation-India; Energy policy-India ER -