00285nam a2200109Ia 4500008004100000020001800041082001500059100001600074245003100090260004600121300000800167190710s9999    xx            000 0 und d  a81-203-3280-5  a370.15 MS:  aMangal, S K 0aShiksha manovigyan (Hindi)  aNew DelhibPrentice Hall of India Pc2008  a768