Small-pox: the predisposing conditions and their prevention

Chicago citation style
Both, Carl. Small-pox: the predisposing conditions and their prevention. 1872. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/101745861. (Accessed October 19, 2018.)
APA citation style
Both, Carl, (1872) Small-pox: the predisposing conditions and their prevention. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/101745861
MLA citation style
Both, Carl. Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/101745861>.
Note: These citations are programmatically generated and may be incomplete.