00493nam a22001697i 4500008004100000020002400041040000800065082001400073100002200087245002600109260004900135300004300184336002600227337002800253338002800281650001400309230218b2017 |||ado|| |||| 000 0 eng d a9788183306119qpbk. aGCL a661 bVER1 aVerma, VijeycDr.1 aIndustrial chemistry  aNew Dehli :bArjun Publishing House,c2017. av, 218pages :billustrations ;c22 cm. atext2rdacontentbtxt aunmediatedbn2rdamedia avolume bnc2rdacarrier aChemistry