Pennsylvania Institution for the Instruction of the Blind.

Chicago citation style
Bowen, John T., approximately 1801-1856, Castner, Samuel, 1843-1929, Wild, J. C. (John Caspar), approximately 1804-1846. Pennsylvania Institution for the Instruction of the Blind.. Ca. 1838. Retrieved from the Digital Public Library of America, http://libwww.freelibrary.org/diglib/searchItem.cfm?itemID=pdcc00799. (Accessed December 11, 2018.)
APA citation style
Bowen, John T., approximately 1801-1856, Castner, Samuel, 1843-1929, Wild, J. C. (John Caspar), approximately 1804-1846, (Ca. 1838) Pennsylvania Institution for the Instruction of the Blind.. Retrieved from the Digital Public Library of America, http://libwww.freelibrary.org/diglib/searchItem.cfm?itemID=pdcc00799
MLA citation style
Bowen, John T., approximately 1801-1856, Castner, Samuel, 1843-1929, Wild, J. C. (John Caspar), approximately 1804-1846. Retrieved from the Digital Public Library of America <http://libwww.freelibrary.org/diglib/searchItem.cfm?itemID=pdcc00799>.
Note: These citations are programmatically generated and may be incomplete.