000 cam a22 a 4500
999 _c38516
_d38516
003 BD-DhIDS
005 20180410021204.0
008 180410t1962 -us||||| |||| 00| 0 eng d
040 _aBD-DhIDS
_cBD-DhIDS
_dBD-DhIDS
041 _aEng
082 _a633.101 Us
_bJOH
100 1 _aJohnson, David Gale
245 1 0 _aGrain yields and the American food supply: an analysis of yield changes and possibilities /
_cDavid Gale Johnson, Robert L. Gustafson
260 _aChicago :
_bChicago University Press,
_c1962
300 _axii, 146p. :
_bill. ;
_c23 cm.
504 _aIncludes bibliographical references and index.
650 0 4 _aSeeds
650 0 4 _aCrops and climate
650 0 4 _aCrop yield
650 0 4 _aGrain
700 1 _aGustafson, Robert L.
942 _2ddc
_cBK