000 00406nam a22001457a 4500
008 141210b xxu||||| |||| 00| 0 eng d
080 _a641
100 _aHeady,Earl O.
245 _aalternatves for balacing world food production needs
_cEarl O. Heady
250 _a1st
260 _aNew York
_bthe lowa state
_c1967
300 _a272p.
_b
_c
_e
_f
_g
650 _aprodutos agricolas
942 _2udc
_cBK
999 _c31905
_d31905