TY  - BOOK
AU  - Manoj Tiwari
AU  - Kapil Khulbe
TI  - Environmental Studies
SN  - 0000061194
U1  - 620.8 
PY  - 2007///
CY  - New Delhi
PB  - I.K.Int
KW  -  Studies
KW  - Environmental
KW  - Environmental app health
ER  -