Proceedings of the ninth international vacuum congress and fifth international conference on solid surfaces/

Eitemau Tebyg

• Proceedings of the ninth international vacuum congress and fifth international conference on solid surfaces
  gan: Segovia, J L De, Ed., et al
  Cyhoeddwyd: (1983)
• Proceedings of The Ninth International Congress of Linguists
  Cyhoeddwyd: (1964)
• Proceedings of the ninth international ship structures congress
  Cyhoeddwyd: (1985)
• 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)