Callahan, K. L. (1990). Effective church leadership: Building on the twelve keys. Harper & Row.
Cita Chicago Style (17a ed.)Callahan, Kennon L. Effective Church Leadership: Building on the Twelve Keys. San Francisco: Harper & Row, 1990.
Cita MLA (8a ed.)Callahan, Kennon L. Effective Church Leadership: Building on the Twelve Keys. Harper & Row, 1990.
Precaución: Estas citas no son 100% exactas.