APA (7th ed.) Citation

United States. Hydrographic Office. (1873). On routes of mail steamers between English Channel and New York. publisher not identified].

Chicago Style (17th ed.) Citation

United States. Hydrographic Office. On Routes of Mail Steamers Between English Channel and New York. [S.l.: publisher not identified], 1873.

MLA (9th ed.) Citation

United States. Hydrographic Office. On Routes of Mail Steamers Between English Channel and New York. publisher not identified], 1873.