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Portail d'information géographique

Résultats de la recherche (6 résultats)

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Par Collection Par Auteur Par Date Par Sujet Par Titre
  • A new look at some old evidence: the wheat market scandal of 1925
  • 1981
  • The Chicago wheat future markets: recent problems in historical perspective
  • 1981
  • The U. S. wheat economy in an international setting: an econometric investigation
  • 1981
  • The implications of establishing a U. S. Wheat Board
  • 1981
  • Economic benefits of improved crop information on wheat and all cereals for European countries in Application of remote sensing to agricultural production forecasting.
  • 1981
  • A method for evaluating bird damage to cereal crops (barley and wheat) has been tested during 1977 in N. W. Algeria. The damage distribution has been interpreted with reference to Spanish Sparrow colonies. The collected informations revealed
  • 1981