Ringgold, C. (1852). A series of charts: With sailing directions, embracing surveys of the Farallones, entrance to the bay of San Francisco, bays of San Francisco and San Pablo, straits of Carquines and Suisun Bay, confluence and deltic branches of the Sacramento and San Joaquin Rivers and the Sacramento River (with the middle fork) to the American River, including the cities of Sacramento and Boston, State of California (4th ed., with additions.). Printed by J.T. Towers.

Ringgold, Cadwalader. A Series of Charts: With Sailing Directions, Embracing Surveys of the Farallones, Entrance to the Bay of San Francisco, Bays of San Francisco and San Pablo, Straits of Carquines and Suisun Bay, Confluence and Deltic Branches of the Sacramento and San Joaquin Rivers and the Sacramento River (with the Middle Fork) to the American River, Including the Cities of Sacramento and Boston, State of California. 4th ed., with additions. Printed by J.T. Towers, 1852.