000 00470nam a2200097Ia 45e0
008 131022n xxu |||gr||||Z||||||eng
100 _aBrown, W. G,
_eAuthor.
245 0 _aProduction Functions, Isoquants, Isolates and Economic Optima in Corn Fertilization for Experimentas with two and three Variable Nutrients
_cW. G. Brown
_hTextual Documents
260 _aAmes
_bIOWA State University Press,
942 _2ddc
_cTXT
999 _c38330
_d38330