000 00316nam a2200121Ia 4500
008 161118s2016 xx 000 0 und d
082 _a630.72 NGA-O
100 _aNgambeki, D.S.Ed
245 0 _aOn Farm Experimentation in Farming System Research
260 _aNigeria
_bIITA
_c1982
300 _a101 p.
942 _2ddc
999 _c25112
_d25112