APA (7th ed.) Zitazioa
ebrary, Inc, & Bussell, I. S. (2009). Oil shale developments. Nova Science Publishers, Inc..
Chicago Style (17th ed.) Zitazioa
ebrary, Inc, eta Ike S. Bussell. Oil Shale Developments. New York: Nova Science Publishers, Inc., 2009.
MLA (9th ed.) Zitazioa
ebrary, Inc, eta Ike S. Bussell. Oil Shale Developments. Nova Science Publishers, Inc., 2009.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.