Polster, Burkard The shoelace book a mathematical guide to the best (and worst) ways to lace your shoes - Providence American Mathematical Society 2006 - x, 125p. Bibl. Index. - Mathematical World v. 24 . "Purchased under NBHM grant for the year 2006-2007" ISBN: 0821839330 Dewey Class. No.: 510.9 / P778.SB