^Textile Institute (Manchester, England) (1975). Farnfield, Carolyn A.; Alvey, P.J. (eds.). Textile Terms and Definitions (7th ed.). Manchester, England: Textile Institute. p. 223. ISBN9780900739170. Retrieved 20 June 2018.
^ abTortora, Phyllis G.; Merkel, Robert S. (1996-01-10). Fairchild's Dictionary of Textiles (7th ed.). New York: Fairchild Publications. p. 647. ISBN9780870057076.