000 00349nam a2200145Ia 4500
008 130223s9999 xx 000 0 und d
100 _aLadd, G.W.
245 _aDistributed lag inventory analyses
260 _aAmes
260 _c1963
300 _a829-856 p.
440 _aNo. 515; Iowa Agricultural Exp
901 _pS6279
942 _cB
_2udc
999 _c120110
_d120110