APA (7th ed.) Citation

Office, U. S. H. (1926). Great circle sailing chart of the North Atlantic Ocean. United States. Hydrographic Office.

Chicago Style (17th ed.) Citation

Office, United States. Hydrographic. Great Circle Sailing Chart of the North Atlantic Ocean. United States. Hydrographic Office, 1926.

MLA (9th ed.) Citation

Office, United States. Hydrographic. Great Circle Sailing Chart of the North Atlantic Ocean. United States. Hydrographic Office, 1926.

Warning: These citations may not always be 100% accurate.