Proceedings of the ninth international conference of agricultural economists

Eitemau Tebyg

• Proceedings of the ninth international conference of agricultural economists
  gan: Implications of technical change in agriculture
  Cyhoeddwyd: (1952)
• Proceedings of the ninth international conference of agricultural economists
  gan: Implications of technical change in agriculture
  Cyhoeddwyd: (1956)
• Proceedings of the ninth international conference of agricultural economists
  gan: Implications of technical change in agriculture
  Cyhoeddwyd: (1949)
• Proceedings of the ninth international conference of agricultural economists
  gan: Implications of technical change in agriculture
  Cyhoeddwyd: (1938)
• Proceedings of the ninth international conference of agricultural economists
  gan: Implications of technical change in agriculture
  Cyhoeddwyd: (1934)