000 00357nam a2200145Ia 4500
008 130223s9999 xx 000 0 und d
100 _aFuller, W.
245 _aAlternative parity formula for agriculture
260 _aAmes
260 _c1960
300 _a692-724 p.
440 _aIowa Agricultural Experiment S
901 _pS1255
942 _cB
_2udc
999 _c152380
_d152380