TY - BOOK AU - Rai,G.D. ED - TI - Non-conventional energy resources SN - 978-81-7409-073-8 U1 - 621.042 ed.6 PY - 2018/// CY - New Delhi PB - Khanna KW - 1. MECHANICAL ENGINEERING KW - 2. ENERGY RESOURCES N1 - Includes index ER -