000
00311nam a2200121Ia 4500
008
191031s9999 xx 000 0 und d
100
_a
United states dept. of agriculture
245
2
_a
A manual on conservation of soil and water
260
_b
Oxford & IBH
260
_c
1969
365
_b
3.00
942
_c
BK
999
_c
197660
_d
197660