000
00306nam a2200109Ia 45e0
008
181001s1982 xx 000 0 und d
100
_a
Zechar P.
245
0
_a
Soil erosion
260
_a
Amstondom
_b
Ever Sci.pub.
_c
1982
300
_a
547
942
_2
ddc
_c
BK
999
_c
3867
_d
3867