Petroleum formation and occurrence

Eitemau Tebyg

• Petroleum Formation and Occurrence
  gan: Tissot,B.P. and Welte,D.H
  Cyhoeddwyd: (1984)
• Petroleum fromation and occurrence
  gan: Tissot, B P
  Cyhoeddwyd: (1984)
• Petroleum fromation and occurrence: a new approach to oil and gas exploration
  gan: Tissot, B P
  Cyhoeddwyd: (1978)
• Occurrence and Distribution of Selenium
  gan: Ihnat, Milan;Ed
  Cyhoeddwyd: (1989)
• the nightwatchman's occurrence book
  gan: V.S Naipaul