00469nam a2200145Ia 4500020001500000082001900015100002100034245009200055260005200147300002600199490003200225500005600257500000500313700000500318  a0821839330  a510.9bP778.SB  aPolster, Burkard  aThe shoelace bookba mathematical guide to the best (and worst) ways to lace your shoes  aProvidencebAmerican Mathematical Societyc2006  ax, 125p. Bibl. Index.  aMathematical World v v. 24  a"Purchased under NBHM grant for the year 2006-2007"  a  a