Não informado. (2010). The American Association of Petroleum Geologists Bulletin. American Association of Petroleum Geologists.
Lua i Stíl Chicago (17ú heag.)Não informado. The American Association of Petroleum Geologists Bulletin. Tulsa, Okla: American Association of Petroleum Geologists, 2010.
Lua MLA (8ú heag.)Não informado. The American Association of Petroleum Geologists Bulletin. American Association of Petroleum Geologists, 2010.
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