000 00307nam a2200121Ia 4500
008 250224s9999 xx 000 0 und d
020 _a582603048
082 _a332.31ABB
100 _aAbbott J. C
245 0 _aAgricultural economics and marketing in the tropics
260 _bLongman
_c1979
942 _cBK
999 _c439924
_d439924