TY  - BOOK
AU  - Tamrakar, N.K.
AU  - Acharya, K.K.
TI  - Environmental earth science
SN  - 9789937252386
U1  - 550/T158e 
PY  - 2012///
CY  - Kathmandu
PB  - Dikshant prakashan, 
KW  - Earth science
KW  - Earth
ER  -