Mumford, Bob. 15 steps out : a study of subjective Christianity : a testimony of a spiritual itinerary / Bob Mumford. - Plainfield, N.J. : Logos International, [1969] - 90 pages ; 21 cm Subjects--Uniform Titles: Bible.--Psalms, CXX-CXXXIV--Devotional literature. Subjects--Topical Terms: Christian life.Spirituality. Index Terms--Genre/Form: Devotional literature. Dewey Class. No.: 248.2 / M962s