TY  - BOOK
ED  - Tamil Nadu(India)
ED  - Text Nadu Text Book and Educational Service Corporation
TI  - Science: Standard Nine 
U1  - 500 
PY  - 2020///
CY  - (Chennai)
PB  - Tamil Nadu Text Book and Educational Service Corporation
KW  - Standard Nine
KW  - Ninth Science
KW  - 9th Science
N1  - Includes Index
ER  -