Agricultural thought in the twentieth century /

Ngā tūemi rite

• Progressive and academic ideals at the turn of the twentieth century /
  mā: Jordy, William H.
  I whakaputaina: (1972)
• The impact of European modernism in the mid-twentieth century /
  mā: Jordy, William H.
  I whakaputaina: (1986)
• Agriculture in our lives : an introduction to agricultural business and natural resources /
  mā: Krebs, Alfred H.
  I whakaputaina: (1978)
• Toward a more sustainable agriculture /
  mā: Poincelot, Raymond P., 1944-
  I whakaputaina: (1986)
• The Agricultural scientific enterprise : a system in transition /
  I whakaputaina: (1986)