000
00292nam a2200121Ia 4500
008
151015s9999 xx 000 0 und d
020
_a
9251032041
100
_a
Aderson, jock R
245
_a
Risk analysis in dryland farming stems
260
_c
1992
300
_a
ix 59p.
942
_c
FAO
_2
udc
999
_c
25052
_d
25052