Callahan, K. L. (1983). Twelve keys to an effective church: Strategic planning for mission. Harper & Row.
Cita Chicago Style (17a ed.)Callahan, Kennon L. Twelve Keys to an Effective Church: Strategic Planning for Mission. Cambridge: Harper & Row, 1983.
Cita MLA (9a ed.)Callahan, Kennon L. Twelve Keys to an Effective Church: Strategic Planning for Mission. Harper & Row, 1983.
Precaución: Estas citas no son 100% exactas.