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  1. 1

    Easing barriers to movement of plant varieties for agricultural development

    Pubblicazione 1997
    Libro

    Easing barriers to movement of plant varieties for agricultural development
  2. 2

    Easing barriers to movement of plant varieties for agricultural development

    Pubblicazione 1997
    Libro

    Easing barriers to movement of plant varieties for agricultural development
  3. 3

    Seed system development the appropriate roles of the private and public sectors di Jaffee, Steven

    Pubblicazione 1992
    Libro

    Seed system development the appropriate roles of the private and public sectors
  4. 4

    Successful seed programs a planning and management guide

    Pubblicazione 1980
    Libro

    Successful seed programs a planning and management guide

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