ebrary, Inc. (2003). Exploration of the seas: Voyage into the unknown. National Academies Press.
Chicago Style (17th ed.) Zitazioaebrary, Inc. Exploration of the Seas: Voyage into the Unknown. Washington, D.C.: National Academies Press, 2003.
MLA (9th ed.) Zitazioaebrary, Inc. Exploration of the Seas: Voyage into the Unknown. National Academies Press, 2003.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.