TY  - BOOK
AU  - Vedavalli, V.R.
AU  - Paul, Jose.
AU  - Moorthy, Gayatri.
TI  - Headway science: 3A chemistry  
U1  - 500 
PY  - 1984///
CY  - New Delhi
PB  - Vikas
KW  - Science
KW  - Problems, exercises, etc
ER  -