Office, U. S. H. North Atlantic Ocean: Northeastern sheet [portion]. United States. Hydrographic Office.
Chicago Style (17th ed.) CitationOffice, United States. Hydrographic. North Atlantic Ocean: Northeastern Sheet [portion]. United States. Hydrographic Office.
MLA (9th ed.) CitationOffice, United States. Hydrographic. North Atlantic Ocean: Northeastern Sheet [portion]. United States. Hydrographic Office.
Warning: These citations may not always be 100% accurate.