Wiersbe, Warren W, The bumps are what you climb on : encouragement for difficult days / [print] Warren W. Wiersbe. - 2third printing. - Grand Rapids : Baker, (c)1980, 1992 printing. - 135 pages ; 21 cm. Subjects--Topical Terms: Christian life.Encouragement--Sermons. LC Class. No.: BV4905.W648.B867 1993