00366nam a22001457a 450000500170000001000130001702000230003003500130005303700200006608200100008610000200009624500460011626000370016230000210019920190508134546.0  aB-083344  a8170632676c130.00  aB-083344  bArya Book Depot  a570.7  aMangal, Dr.S.K.  aTeaching of life sciencecDr. S.K. Mangal  aNew DelhibArya Book Depotc2004  a304pc23cm (hbk)