00372cam a2200145ua 4500020000900000041001000009082001600019100001700035245009300052250001200145260004300157300001200200365000900212504000500221 c3.75 aengh a540bSON/PR aSoni, P L . aPre-university and higher secondary chemistry pass book / cP L Soni.hTextual Documents a3 / b. aNew Delhi : bS.Chand and Co , c1965. a319 ; . a3.75 a