000
00325nam a2200133Ia 4500
008
180110s2010 xx 000 0 und d
020
_a
8176090691
082
_a
628
100
_a
Singh, Pratap
245
0
_a
Environmental Studies
260
_a
Delhi
_b
Himanshu Publications
_c
2010
300
_a
389p.; 23
942
_2
ddc
_c
BK
_0
5
999
_c
2187
_d
2187