00351nam a2200133Ia 4500020001500000082001700015100002000032245002200052260004800074300002900122500005600151500000500207700000500212  a0521548314  a514bC946.KL  aCromwell, Peter  aKnots and linksb  aCambridgebCambridge University Pressc2004  axvii, 328p. Bibl. Index.  a"Purchased under NBHM grant for the year 2004-2005"  a  a