↑ Thomas, Nancy; Rabinowitz, Ilana; Falick, Melanie (2002). A passion for knitting: step-by-step illustration techniques, easy contemporary patterns, and essential resources for becoming part of the world of knitting . Simon and Schuster. p. 185. ISBN0-684-87069-X。
↑グレース、シェリル E. (2001).カナダと北の概念. マギル・クイーンズ出版. p. 25. ISBN0-7735-2247-6。