00413nam a2200133Ia 4500082001900000100002500019245002700044260005200071300003000123490006000153500005600213500000500269700000500274  a515.72bJ79.SK  aJones, Vaughan F. R.  aSubfactors and Knotsb  aProvidencebAmerican Mathematical Societyc1991  aix, 113p. Bibl., Appendix  aCBMS regional conference series in Mathematicsv no. 80  a"Purchased under NBHM grant for the year 1994-1995"  a  a