000 00261nam a2200109Ia 4500
008 230108s9999 xx 000 0 und d
100 _aKassam AH
245 0 _aCrops of the West Africal Semi-Arid Tropics
365 _b0.00
650 _aAgronomy
942 _cBK
999 _c239577
_d239577