Dokumentuaren aipamena

APA (7th ed.) Zitazioa
Bryan George S. (1946). Ice atlas of the northern hemisphere (1 ª ed.). Hydrographic Office.
Chicago Style (17th ed.) Zitazioa
Bryan George S. Ice Atlas of the Northern Hemisphere. 1 ª ed. Hydrographic Office, 1946.
MLA (9th ed.) Zitazioa
Bryan George S. Ice Atlas of the Northern Hemisphere. 1 ª ed. Hydrographic Office, 1946.
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