Marty, M. E. (1966). Varieties of Unbelief. Doubleday & Company.
Cita Chicago Style (17a ed.)Marty, Martin E. Varieties of Unbelief. Garden City (New York): Doubleday & Company, 1966.
Cita MLA (9a ed.)Marty, Martin E. Varieties of Unbelief. Doubleday & Company, 1966.
Precaución: Estas citas no son 100% exactas.