000
00283nam a2200097Ia 4500
008
220505s1993 xx 000 0 und d
041
_a
eng
245
_a
Global environment problems vol-3
260
_a
New Delhi
_b
Ashish Publishing House
_c
1993
650
_a
ENVIRONMENTAL SCIENCE
_9
649323
999
_c
452993
_d
452993