Cita APA (7th ed.)

Roberts, W. H., & Cordell, R. J. (1980). Problems of petroleum migration. American Association of Petroleum Geologists.

Cita Chicago (17th ed.)

Roberts, W. H., i R. J. Cordell. Problems of Petroleum Migration. Tulsa, OK: American Association of Petroleum Geologists, 1980.

Cita MLA (9th ed.)

Roberts, W. H., i R. J. Cordell. Problems of Petroleum Migration. American Association of Petroleum Geologists, 1980.