APA (7e ed.) Bronvermelding
Callahan, K. L. (1983). Twelve keys to an effective church: Strategic planning for mission. Jossey-Bass.
Chicago (17e ed.) Bronvermelding
Callahan, Kennon L. Twelve Keys to an Effective Church: Strategic Planning for Mission. San Francisco: Jossey-Bass, 1983.
MLA (9e ed.) Bronvermelding
Callahan, Kennon L. Twelve Keys to an Effective Church: Strategic Planning for Mission. Jossey-Bass, 1983.
Let op: Deze citaties zijn niet altijd 100% accuraat.