Callahan, K. L. (1990). Effective church leadership: Building on the twelve keys. Harper & Row.
Chicago (17e ed.) BronvermeldingCallahan, Kennon L. Effective Church Leadership: Building on the Twelve Keys. San Francisco: Harper & Row, 1990.
MLA (8e ed.) BronvermeldingCallahan, Kennon L. Effective Church Leadership: Building on the Twelve Keys. Harper & Row, 1990.
Let op: Deze citaties zijn niet altijd 100% accuraat.