A chart of Porto Rico and the Virgin Islands, &c. with plans of the principal harbours and roadsteads / chiefly from the Spanish surveys by J.S. Hobbs, Hydrographer ; published as the Act directs, September 1st, 1846 by Charles Wilson (late J.W. Norie & Wilson) at the Navigation Warehouse and Naval Academy.

Chicago citation style
Hobbs, J.S. A chart of Porto Rico and the Virgin Islands, &c. with plans of the principal harbours and roadsteads / chiefly from the Spanish surveys by J.S. Hobbs, Hydrographer ; published as the Act directs, September 1st, 1846 by Charles Wilson (late J.W. Norie & Wilson) at the Navigation Warehouse and Naval Academy.. 1857. Retrieved from the Digital Public Library of America, http://collections.lib.uwm.edu/cdm/ref/collection/agdm/id/385. (Accessed July 4, 2020.)
APA citation style
Hobbs, J.S, (1857) A chart of Porto Rico and the Virgin Islands, &c. with plans of the principal harbours and roadsteads / chiefly from the Spanish surveys by J.S. Hobbs, Hydrographer ; published as the Act directs, September 1st, 1846 by Charles Wilson (late J.W. Norie & Wilson) at the Navigation Warehouse and Naval Academy.. Retrieved from the Digital Public Library of America, http://collections.lib.uwm.edu/cdm/ref/collection/agdm/id/385
MLA citation style
Hobbs, J.S. Retrieved from the Digital Public Library of America <http://collections.lib.uwm.edu/cdm/ref/collection/agdm/id/385>.
Note: These citations are programmatically generated and may be incomplete.