TY  - BOOK
AU  - Khoiyangbam, R S, ed.
TI  - Introduction to environmental sciences
U1  - 363.7 K528I 
PY  - 2015///
CY  - New Delhi
PB  - Teri
N1  - 2212 11/12/2015 PBA15/599 15/12/2015 Main Budget
ER  -