000
00304nam a2200133Ia 4500
008
151018s9999 xx 000 0 und d
020
_a
9251001464
080
_a
F631.5
_b
CRO
245
_a
Crop farming
260
_c
1976
300
_a
29 p.
500
_a
Better farming series no- 7
942
_c
FAO
_2
udc
999
_c
25825
_d
25825