Mackie, Steven, 1927-, Can churches be compared? : reflections on fifteen study projects / edited by Steven G. Mackie. - Geneva : World Council of Churches ; 1970. New York : Friendship Press, (c)1970. - 101 pages : 22 cm. - Research pamphlet no. 17 . Includes bibliographical references. Subjects--Topical Terms: Christian sociology.Church.Missions. LC Class. No.: BV600 / .C363 1970