Cita APA (7th ed.)

Callahan, K. L. (1990). Effective church leadership: Building on the twelve keys. Jossey-Bass.

Cita Chicago (17th ed.)

Callahan, Kennon L. Effective Church Leadership: Building on the Twelve Keys. San Francisco: Jossey-Bass, 1990.

Cita MLA (9th ed.)

Callahan, Kennon L. Effective Church Leadership: Building on the Twelve Keys. Jossey-Bass, 1990.