TY  - BOOK
AU  - Ghosh,Anil Kumar
TI  - Dirghasthaye unnayan o paribesh babyasthapana / 
U1  - 363.7 
PY  - 2008///
CY  - Kolkata : 
PB  - Prama Prakashani , 
KW  - ENVIRONMENTAL PROBLEMS
N1  - NULL
ER  -