TY  - BOOK
AU  - Das, R R.
TI  - Concepts of environmental science : based on UGC model curriculum  for undergraduate courses
SN  - 8189253050
U1  - 628.5  DAS;1  R 
PY  - 2005///
CY  - New Delhi
PB  - Paragon international
KW  - UGC,curriculum, fo, undergraduat, courses
ER  -