Callahan, Kennon L. Twelve keys to an effective church the leader's guide Kennon L. Callahan - San Francisco Harper & Row Pub. c1987 - 126 p. ; 22 cm. ISBN: 0060612959 Subjects--Topical Terms: Church growth--PlanningStrategic planningChurch management LC Class. No.: BV 652.25 / .C35