TY  - BOOK
AU  - Misra, S P; Pandey, S N
TI  - Essential environmental studies
SN  - 9781420077469
U1  - 577.77 MIS-E2 22
PY  - 2010///
CY  - 
PB  - Ane Books Pvt.Ltd., New Delhi
KW  - Circadian
ER  -