TY  - BOOK
AU  - Sen Gupta,D.P.
AU  - Gujjarappa,BiJi
AU  - Mandol,Samir
TI  - What on earth is energy?
T2  - Popular science series
AV  - Q181.A2 
PY  - 1989///
CY  - New Delhi
PB  - Publication Department, National Council of educational Research and Training
KW  - Science
KW  - Study and teaching
ER  -