Proceedings earth and planetary sciences, 1981, Vol.090, No.01-04

Eitemau Tebyg

• Proceedings earth and planetary sciences, 1986, Vol.095, No.01-04
  Cyhoeddwyd: (1986)
• Proceedings earth and planetary sciences, 1992, Vol.101, No.01-04
  Cyhoeddwyd: (1992)
• Proceedings earth and planetary sciences, 1991, Vol.100, No.01-04
  Cyhoeddwyd: (1991)
• Proceedings earth and planetary sciences, 1990, Vol.99, No.01-04
  Cyhoeddwyd: (1990)
• Proceedings earth and planetary sciences, 1984, Vol.093, No.01-04
  Cyhoeddwyd: (1984)