APA-viite (7. p.)

Callahan, K. L. (1983). Twelve keys to an effective church: Strategic planning for mission. Harper & Row.

Chicago-viite (17. p.)

Callahan, Kennon L. Twelve Keys to an Effective Church: Strategic Planning for Mission. Cambridge: Harper & Row, 1983.

MLA-viite (9. p.)

Callahan, Kennon L. Twelve Keys to an Effective Church: Strategic Planning for Mission. Harper & Row, 1983.