TY  - BOOK
AU  - Kumar, Arvind .
TI  - A Textbook of Environmental Science: As Per UGC Syllabus
SN  - 81-7648-590-X
U1  - 620.8 
PY  - 2004///
CY  - New Delhi
PB  - APH Publishing Cororation
KW  - Environmental Science
KW  - G-Geography
KW  - PG-Geography
ER  -