TY  - BOOK
AU  - YOGENDRA N SRIVASTAVA
TI  - ENVIRNMENTAL POLLUTION
SN  - ISBN817024210X
U1  - GN363.7SR38F 
PY  - 1989///
CY  - NEW DELHI
PB  - Ashish Publishing House
KW  - ENVIRNMENTAL POLLUTION
N1  - MODERN BOOK HOUSE
ER  -