APA (7th ed.) Zitazioa
Callahan, K. L. (1983). Twelve keys to an effective church: Strategic planning for mission. Jossey-Bass.
Chicago Style (17th ed.) Zitazioa
Callahan, Kennon L. Twelve Keys to an Effective Church: Strategic Planning for Mission. San Francisco: Jossey-Bass, 1983.
MLA (9th ed.) Zitazioa
Callahan, Kennon L. Twelve Keys to an Effective Church: Strategic Planning for Mission. Jossey-Bass, 1983.
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