000
00330nam a2200133Ia 4500
008
191201s2011 xx 000 0 und d
100
_a
DESWAL,S
245
0
_a
Basic Course in Environmental Studies
250
_a
Rep
260
_c
2011
_b
Dhanpat Rai Pub (P) Ltd
_a
N. Delhi
300
_a
MISC
650
_a
APPLIED
942
_2
ddc
_c
BB
999
_c
7451
_d
7451