00395nam a2200145Ia 4500008004100000020001500041082001600056100001800072245002100090260004800111300000800159650003900167650001500206653002800221170901s1971    xx            000 0 und d  a0521095808  a159.4bV56H  aVernon, M. D. 0aHuman Motivation  aCambridgebCambridge University Pressc1971  a190  aPhilosophy and related disciplines  aPsychology  aMotivation (Psychology)