Thirty-four letters to a son in the ministry

Chicago citation style
Humphrey, Heman, 1779-1861. Thirty-four letters to a son in the ministry. 1842. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/009728695. (Accessed November 14, 2018.)
APA citation style
Humphrey, Heman, 1779-1861, (1842) Thirty-four letters to a son in the ministry. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/009728695
MLA citation style
Humphrey, Heman, 1779-1861. Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/009728695>.
Note: These citations are programmatically generated and may be incomplete.