Cita APA (7th ed.)
Heydt, H. J. (1967). A comparison of world religions. Christian Literature Crusade.
Cita Chicago (17th ed.)
Heydt, Henry J. A Comparison of World Religions. Fort Washington: Christian Literature Crusade, 1967.
Cita MLA (9th ed.)
Heydt, Henry J. A Comparison of World Religions. Christian Literature Crusade, 1967.
Atenció: Aquestes cites poden no estar 100% correctes.