APA (7th ed.) Citation

Forbes, E., & Hanley, S. (1848). A history of British mollusca and their shells: By Edward Forbes and Sylvanus Hanley. John Van Voorst.

Chicago Style (17th ed.) Citation

Forbes, Edward, and Sylvanus Hanley. A History of British Mollusca and Their Shells: By Edward Forbes and Sylvanus Hanley. London: John Van Voorst, 1848.

MLA (9th ed.) Citation

Forbes, Edward, and Sylvanus Hanley. A History of British Mollusca and Their Shells: By Edward Forbes and Sylvanus Hanley. John Van Voorst, 1848.