000
00310nam a2200133Ia 4500
008
160710s1999 xx 000 0 und d
082
_a
631.45
100
_a
TROEH,F.R. AND OTHERS
245
_a
Soil and Water conservation
250
_a
3
260
_b
Prentice Hall
_c
1999
300
_a
610
942
_2
ddc
_c
B
999
_c
59760
_d
59760