00325nam a2200121Ia 4500008004100000040002500041082001700066100002100083245003100104250001900135260003800154300001100192230627s9999    xx            000 0 und d  aNORSU-SiacNORSU-Sia  a 808.066 P41  aPerrin ,  Robert 0aPocket Guide to APA style   aThird Edition   bWadsworth Cengage  Learningc2009  a155 p.