00334nam a2200121 a 450000500170000008200200001710000160003710000150005324500450006826000290011330000280014263000420017020251203091152.0  a330.015195bSHA  aSharma, P.D  aNagar, A.L  aStatistical methods of economic analysis  aNew DelhibS.Chandc1987  aviii,198 p.b22 cm.cPB  aStatistical methods,Economic analysis