000
00265nam a2200109Ia 4500
001
28773
008
170722s9999 xx 000 0 und d
100
_a
Wareing, Pf
245
_a
Potential crop production
_b
A case study 1971 /
700
_a
Cooper , Jp
942
_c
GEN
999
_c
86373
_d
86373