TY  - BOOK
AU  - A. R. Vasudeva Murthy
ED  - National Council of Educational Rescarch and Training (New Delhi, India)
TI  - Science for secondary school: chemistry classes in X 
U1  - 540 
PY  - 1977///
CY  - New Delhi
PB  - Nattonal Council of Education Rescarch and Training
ER  -