Wallis, J. (1981). The call to conversion. Harper & Row.
Cita Chicago Style (17a ed.)Wallis, Jim. The Call to Conversion. New York: Harper & Row, 1981.
Cita MLA (8a ed.)Wallis, Jim. The Call to Conversion. Harper & Row, 1981.
Precaución: Estas citas no son 100% exactas.