00494    a2200193   4500001000700000003000400007005001700011008004100028020001800069082001400087100001600101245007700117250001200194260003900206300001000245653001200255700001800267700001500285147387OSt20210917110204.0                                          a9788171339921  a570bC74C1 aKotpal, R.L1 aConcepts of biology class XIIcby R.L. Kotpal, Ashok Bendre,  K N Tyagi,  a4th ed.  aMerrutbRastogi Publicationsc2015  av. p.  aBiology  aBendre, Ashok  aTyagi, K N