00380nam a2200157Ia 4500008004100000020000900041035000800050082001300058100002400071245005400095250000800149260004100157300000800198500001000206650000600216210723s9999||||xx |||||||||||||| ||und||  aNULL  a967  a150BMAI  aMaier, Norman R. F. 0aFrustration : The Study Of Behaviour Without Goal  a1st  aLondonbUniversity Of Michigan Press  a264  a11449  a-