00486nam a2200145Ia 4500008004100000082001900041100001900060245006400079260004000143300002000183650001400203942000700217952009900224999001700323171129s9999||||xx |||||||||||||| ||und||  a370.78bAGG-ED  aAggarwal, J.C. 0aEducational research : an introductionc/ by  J.C. Aggarwal  aNew Delhi :bArya Book Depot,c1966  aiv,260p.; 21cm.  aEducation  cBK  00104070aRIEBRbRIEBRcGENd2017-12-11l0o370.78 AGG-EDp28053r2017-12-11w2017-12-11yBK  c16267d16267