APA (7th ed.) Zitazioa
ebrary, Inc, & Billingshouse, S. I. (2009). Arctic National Wildlife Refuge: Issues and legislation. Nova Science Publishers.
Chicago Style (17th ed.) Zitazioa
ebrary, Inc, eta Sarah I. Billingshouse. Arctic National Wildlife Refuge: Issues and Legislation. New York: Nova Science Publishers, 2009.
MLA (9th ed.) Zitazioa
ebrary, Inc, eta Sarah I. Billingshouse. Arctic National Wildlife Refuge: Issues and Legislation. Nova Science Publishers, 2009.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.