MLA

Office, United States. Hydrographic. Pilot Chart of the South Atlantic [Cartographic Material] / by M.F. Maury. Series C. United States. Hydrographic Office], 1850. https://collections.library.yale.edu/catalog/15833029.

APA, 6th edition

Office, U. S. H. (1850). Pilot chart of the South Atlantic [cartographic material] / by M.F. Maury. Series C. [Nautical charts]. United States. Hydrographic Office], https://collections.library.yale.edu/catalog/15833029.