000
00306nam a2200121Ia 4500
008
170101s1990 xx 000 0 und d
082
_a
628.168 TRI
100
_a
Tripathi A.K.
245
0
_a
Water Pollution
260
_a
New Delhi
_b
Ashish Publishing House
_c
1990
300
_a
326 p.
942
_2
ddc
_c
EG
999
_c
1920916
_d
1920916