Citazione Stile APA (7a Edizione)

Callahan, K. L. (1983). Twelve keys to an effective church: Strategic planning for mission. Jossey-Bass.

Citazione stile Chigago Style (17a edizione)

Callahan, Kennon L. Twelve Keys to an Effective Church: Strategic Planning for Mission. San Francisco: Jossey-Bass, 1983.

Citatione MLA (9a ed.)

Callahan, Kennon L. Twelve Keys to an Effective Church: Strategic Planning for Mission. Jossey-Bass, 1983.