000
00306nam a2200133Ia 4500
008
230108s9999 xx 000 0 und d
100
_a
USDA
245
0
_a
Drainage of Agricultural Land
260
_b
Scientific Publishers
260
_c
1990
365
_b
600.00
650
_a
Engineering
942
_c
BK
999
_c
246186
_d
246186