TY  - BOOK
AU  - SHARMA P D
TI  - ECOLOGY AND ENVIRONMENT
SN  - 8171334202
U1  - TX574.52SH23EC1 
PY  - 1999///
CY  - MEERUT
PB  - RASTOGI PUB.
KW  - ECOLOGY AND ENVIRONMENT
N1  - MODERN BOOK HOUSE
ER  -