00970nam a2200265 i 4500 20231121163559.0 230327s1989 ii ao g 000 0 eng d UIAM eng rda Q181.A2 Sen Gupta, D.P., author 36206 What on earth is energy? / D. P. Sen Gupta ; illustrated by B. G. Gujjarappa, Samir Mandol New Delhi : Publication Department, National Council of educational Research and Training, 1989 ©1989 84 pages : illustrations, photographs ; 28 cm. text rdacontent unmediated rdamedia volume rdacarrier Popular science series Science Study and teaching 2161 Gujjarappa, Bi. Ji., illustrator 584719 Mandol, Samir, illustrator 584720 Popular Science series 584721 sm-ros-kak to rose lcc BOOKREF 513980 545397 0 0 lcc 0 3 SMIDRIS IIUM IIUM SPECIALSH 2023-03-07 MGIFT ssm Q 181 A2 S474W 1989 11100456605 2023-03-07 00:00:00 2023-03-07 BOOKREF