(1920). South Polar chart / from various authorities with amendments and additions to 1912. Great Britain. Hydrographic Office.
Chicago Style (17th ed.) CitationSouth Polar Chart / from Various Authorities with Amendments and Additions to 1912. Great Britain. Hydrographic Office, 1920.
MLA (9th ed.) CitationSouth Polar Chart / from Various Authorities with Amendments and Additions to 1912. Great Britain. Hydrographic Office, 1920.
Warning: These citations may not always be 100% accurate.