A treatise on malacology; or, Shells and shell fish

Chicago citation style
Swainson, William, 1789-1855. A treatise on malacology; or, Shells and shell fish. 1840. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/006221843. (Accessed November 14, 2018.)
APA citation style
Swainson, William, 1789-1855, (1840) A treatise on malacology; or, Shells and shell fish. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/006221843
MLA citation style
Swainson, William, 1789-1855. Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/006221843>.
Note: These citations are programmatically generated and may be incomplete.