00381nam a22001457a 450000500170000000800410001702000220005804000100008008200230009010000180011324500420013126000340017344000160020765000120022320250506115444.0250506b        |||||||| |||| 00| 0 eng d  a978-1-84835-636-8  cGSLRC  a510.76 G518pl 2011  aGlover, David  aThe Planet of puzzles /cDavid Glover  aU.K.:bQED Publishing,c2011.  aMaths quest  aPlanets