000 00422 a2200145 4500
080 _a631.557(73)
_bJ 66 G
245 1 _aGrain yields and the American food supply
_cby D. Gale Johnson and R.L. Gustafson
260 _aU.S.A.
_bUniversity of Chicago Press
_c1962
650 _aGrain Yields
650 _aYield
650 _aFood Supply
100 1 _aJohnson, D. Gale, Gustafson, R.L.
_d
300 _a146 p.
901 _a96455
999 _c44910
_d44910