APA

Barrett E. J. B., . (1927). The Jesuit enigma. New York: Boni & Liveright.

Chicago

Barrett Edward John Boyd, . 1927. The Jesuit enigma. New York: Boni & Liveright.

Harvard

Barrett E. J. B., . (1927). The Jesuit enigma. New York: Boni & Liveright.

MLA

Barrett Edward John Boyd, . The Jesuit enigma. New York: Boni & Liveright. 1927.