00334nam a2200097Ia 4500008004100000040002900041050002100070100002300091245007600114260004600190230222s9999||||xx |||||||||||||| ||und||  cChuka University Library  aBF 76.5bK4 1986  aKerlinger, Fred. N 0aFoundation of behavioral research:Educational and psychological inquiry  aHolt,Rinehart and winstonbNew yorkc1986