Killops, S. (2005). Introduction to Organic Geochemistry (2nd ed.). Blackwell.
Chicago Style (17th ed.) ZitazioaKillops, Stephon. Introduction to Organic Geochemistry. 2nd ed. Oxford: Blackwell, 2005.
MLA (9th ed.) ZitazioaKillops, Stephon. Introduction to Organic Geochemistry. 2nd ed. Blackwell, 2005.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.