00304    a2200109   4500082001300000100001700013245004800030260005000078300002100128650002600149700001900175  a570bVER  aVerma, P. S.  aBiology for secondary schoolsbfor class ix  aNew DilhibS.Chand  & Company Ltdc1980g1989  aviii,381p.c21cm  aLife sciences biology  aAgarwal, V. K.