APA

Barker C., University of Tulsa, . (1979). Organic geochemistry in petroleum exploration. Tulsa, Oklahoma: American Association of Petroleum Geologists, AAPG.

Chicago

Barker Colin, University of Tulsa, . 1979. Organic geochemistry in petroleum exploration. Tulsa, Oklahoma: American Association of Petroleum Geologists, AAPG.

Harvard

Barker C., University of Tulsa, . (1979). Organic geochemistry in petroleum exploration. Tulsa, Oklahoma: American Association of Petroleum Geologists, AAPG.

MLA

Barker Colin, University of Tulsa, . Organic geochemistry in petroleum exploration. Tulsa, Oklahoma: American Association of Petroleum Geologists, AAPG. 1979.