00285cam a2200109ua 4500041001000000082002000010100001700030245008200047260002900129300001200158504000500170  aengh  a660.293bBOY/SO  aBoys, C.V  .  aSoap bubbles and the forces which mould them / cC.V.Boys.hTextual Documents  a : bHeinemann , c1960.  a156 ; .  a