United States. Hydrographic Office. (1874). Azores or Western Islands, with additions to present date. GPO.
Chicago Style (17th ed.) CitationUnited States. Hydrographic Office. Azores or Western Islands, with Additions to Present Date. [Washington]: GPO, 1874.
MLA (9th ed.) CitationUnited States. Hydrographic Office. Azores or Western Islands, with Additions to Present Date. GPO, 1874.
Warning: These citations may not always be 100% accurate.