ebrary, Inc. (2003). Exploration of the seas: Voyage into the unknown. National Academies Press.
Čikaški stil citiranja (17. izdanje)ebrary, Inc. Exploration of the Seas: Voyage into the Unknown. Washington, D.C.: National Academies Press, 2003.
MLA način citiranja (9. izdanje)ebrary, Inc. Exploration of the Seas: Voyage into the Unknown. National Academies Press, 2003.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.