00280pam a2200121 a 4500020000500000041000800005082000800013100002100021245005400042250001000096260003800106300001400144  c  aeng  bBRO  aBrown ,eLemay .  aChemistry The Central Science hTextual Documents  a1987.  aNew DelhibPrentice Hall Of India  a1027 pg .