00676nam a2200193Ia 4500 190327s9999||||xx |||||||||||||| ||und|| NITIL NITIL 21st 333.79 N277W Gupta, D P Sen National Council of Educational Research and Training (New Delhi) What on earth is energy D P Sen Gupta New Delhi National Council of Educational Research and Trainings 1989 84p. Popular science series Power resources-India; Energy conservation-India; Energy consumption-India Gujjarappa, B G (Ill.) Mandol, Samir (Ill.) BKS 51825 51825 0 0 DDC 0 0 NITIL NITIL 2019-04-04 0 333.79 N277W C1893 2019-04-04 00:00:00 2019-04-04 BKS