TY  - BOOK
AU  - Markandey, Dileep Kumar
TI  - Parichayatmak paryavaran pradushan evam niyantaran
U1  - 577.4:628.19 M33P 
PY  - 1991///
CY  - Delhi
PB  - Standard Publishers & Distributors
KW  - Paryavaran pradushan
ER  -