000 00421nam a2200133Ia 4500
008 140208s9999 xx 000 0 und d
044 _aPeru
080 _a635.217 C818Q
100 _aCortbaoui, Roger T.
245 _aOptimizing potato productivity evaluating and utilizing results of on-farm trials
_cRoger T. Cortbaoui
260 _bInternational Potato Center
_aLima
_c1982
300 _a10p.; 28cm.
942 _2udc
_cPB
999 _c16938
_d16938