International Association of Geochemistry and Cosmochemistry. (1977). Organic Geochemistry. Pergamon Press.
Citação do estilo Chicago (17ª ed.)International Association of Geochemistry and Cosmochemistry. Organic Geochemistry. Oxford, Inglaterra: Pergamon Press, 1977.
Citação MLA (8ª ed.)International Association of Geochemistry and Cosmochemistry. Organic Geochemistry. Pergamon Press, 1977.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.