TY  - BOOK
AU  - Shuchita Ghai (ed.)
AU  - Preeti Mahanta (ed.)
AU  - Kasturi Basu (ed.)
TI  - Great scientific discoveries
U1  - 509 
PY  - 1997///
CY  - New Delhi
PB  - Learners Press
KW  - Discoveries Science
KW  - Science
ER  -