Lua APA (7ú heag.)

Chapman, R. E. (1973). Petroleum geology; a concise study. Elsevier Scientific Pub.

Lua i Stíl Chicago (17ú heag.)

Chapman, Richard E. Petroleum Geology; a Concise Study. Amsterdam: Elsevier Scientific Pub, 1973.

Lua MLA (9ú heag.)

Chapman, Richard E. Petroleum Geology; a Concise Study. Elsevier Scientific Pub, 1973.

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