APA (7th ed.) Citation

Polster, B. (2006). The shoelace book: A mathematical guide to the best (and worst) ways to lace your shoes. American Mathematical Society.

Chicago Style (17th ed.) Citation

Polster, Burkard. The Shoelace Book: A Mathematical Guide to the Best (and Worst) Ways to Lace Your Shoes. Providence, R.I.: American Mathematical Society, 2006.

MLA (9th ed.) Citation

Polster, Burkard. The Shoelace Book: A Mathematical Guide to the Best (and Worst) Ways to Lace Your Shoes. American Mathematical Society, 2006.