APA (7th ed.) Zitazioa
ebrary, Inc. (2005). Planning for the International Polar Year 2007-2008: Report of the implementation workshop. National Academies Press.
Chicago Style (17th ed.) Zitazioa
ebrary, Inc. Planning for the International Polar Year 2007-2008: Report of the Implementation Workshop. Washington, D.C.: National Academies Press, 2005.
MLA (9th ed.) Zitazioa
ebrary, Inc. Planning for the International Polar Year 2007-2008: Report of the Implementation Workshop. National Academies Press, 2005.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.