00402nam a2200169Ia 4500003000400000005001700004008004100021020001400062040001000076082002000086100001700106245006000123264001500183264001600198264000900214300000900223OSt20191108022715.0190415s9999    xx            000 0 und d  a059023195  cgslrc  aSC W6321dr 1997  aWick, Walter 2aA drop of water :ba book of science /cby Walter Wick.  aNew York :  bScholastic,  c1997  a40p.