00494nam a2200145Ia 4500008004100000020002900041041000800070050002100078100002200099245006000121260005200181300002700233650007100260999001700331230822s9999    xx            000 0 und d  a9780822456018082245601X   aeng  aLB1084b.M3 1968  aMager, Robert F.  0aDeveloping attitude toward learningb/cRobert F. Mager  aPalo Alto, Calif. : bFearon Publishers, c1968  avii, 104 p.b;c22 cm.  aAchievement motivation.Learning, Psychology of.Effective teaching.  c44983d44983