00374cam a2200145ua 4500020001100000041001000011082002100021100001800042245007300060260004400133300001200177365001100189504000500200700002300205 c250.00 aengh a540.0162bGOY/TE aGoyal, R.N . aText book of engineering chemistry / cR.N.Goyal.hTextual Documents aNew Delhi : bAne Books India , c2008. a372 ; . a250.00 a1 aGoel, Harmendra .