00398nam a22001217a 450000500170000001000140001703700190003124500700005026000340012027000670015430000300022170000250025120230525170958.0  aCHEN25523  aRainbow Books   aScience Encyclopedia bcompiled and edited by Aakanksha and Anand  aDelhi bRainbow Books c20198  aF-32, Street No.12, Parwana Road, Jagat Puri, bDelhi e110051  a104p.bcol.ill.c25cm(Hb)  aAakanksha and Anand