000 00291nam a2200109Ia 4500
008 130521s9999 xx 000 0 und d
020 _a333424557
100 _a"lowe, R. G."
245 _aAgricultural Revolution in Africa ? :
260 _aLondon :
650 _aAGRICULTURAL PRODUCTIVITY- AFRICA
999 _c8747
_d8747