APA (7th ed.) Zitazioa

MacFadyen, A., & Watkins, G. C. (2014). Petropolitics: Petroleum Development, Markets and Regulations, Alberta as an Illustrative History. University of Calgary Press.

Chicago Style (17th ed.) Zitazioa

MacFadyen, Alan, eta G. Campbell Watkins. Petropolitics: Petroleum Development, Markets and Regulations, Alberta as an Illustrative History. Calgary: University of Calgary Press, 2014.

MLA (9th ed.) Zitazioa

MacFadyen, Alan, eta G. Campbell Watkins. Petropolitics: Petroleum Development, Markets and Regulations, Alberta as an Illustrative History. University of Calgary Press, 2014.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.