000
00230nam a2200097 4500
100
_a
Singh S.P.
245
_a
Environmental Science and Agroecology
260
_a
Meerut
_b
Aman Publishing
_c
2013
300
_a
312 p.
942
_2
ddc
_c
BK
999
_c
51357
_d
51357