00274    a2200109   4500020001500000082001300015100001600028245002900044260005400073300002100127650001600148  a0521377439  a510bBOL  aBolt, Brian  aThe mathematical funfair  aCambridgebCambridge University Pressc1989g2001  avi, 122p.c25cm.  aMathematics