Plough,sword and book :the structure of human history

Antzeko izenburuak

• Plough and the pen /
  nork: Duczynska, Ilona &. polanyi, Karl
  Argitaratua: (1956)
• Plough and pasture /
  nork: Curwen, E. Cecil
  Argitaratua: (1946)
• Plough and the stars /
  nork: Swaminathan, K.
  Argitaratua: (1963)
• Lute and the plough /
  nork: Khanolkar, Gd
  Argitaratua: (1963)
• Tractor ploughing
  nork: Ministry of agriculture, Fisheries and food
  Argitaratua: (1974)