Treffer 1 - 3 von 3 für Suche 'Gustafson, Robert L.', Suchdauer: 0,15s Treffer weiter einschränken
  1. 1
    Grain yields and the American food supply an analysis of yield changes and possibilities

    Grain yields and the American food supply an analysis of yield changes and possibilities von Johnson, D. Gale, Gustafson, Robert L.

    Veröffentlicht 1962
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  2. 2
    Grain-yields and the American food supply an analysis of yield changes and possibilities

    Grain-yields and the American food supply an analysis of yield changes and possibilities von Johnson, David Gale 1916-2003, Gustafson, Robert L.

    Veröffentlicht 1962
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  3. 3
    Carryever Levels for grains a method for determining amounts that are optimal under specified condistions

    Carryever Levels for grains a method for determining amounts that are optimal under specified condistions von Gustafson, Robert L.

    Veröffentlicht 1958
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