Religious vocation: an unnecessary mystery

Chicago citation style
Butler, Richard, 1918-1988. Religious vocation: an unnecessary mystery. 1961. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/007939676. (Accessed December 19, 2018.)
APA citation style
Butler, Richard, 1918-1988, (1961) Religious vocation: an unnecessary mystery. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/007939676
MLA citation style
Butler, Richard, 1918-1988. Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/007939676>.
Note: These citations are programmatically generated and may be incomplete.