000 00350nam a2200133Ia 4500
008 100324s9999 xx 000 0 und d
100 _aBaxter S; Howell
245 _aAid and agricultural extension
260 _c1989
_bWorld Bank
_aWashington DC
366 _b1989
650 _aAgriculture
942 _cBK
999 _c72721
_d72721