↑Textile Institute (Manchester, England) (1975). Farnfield, Carolyn A.; Alvey, P.J. (eds.). Textile Terms and Definitions (7thed.). Manchester, England: Textile Institute. p.223. ISBN9780900739170. Retrieved 20 June 2018.
12Tortora, Phyllis G.; Merkel, Robert S. (1996-01-10). Fairchild's Dictionary of Textiles (7thed.). New York: Fairchild Publications. p.647. ISBN9780870057076.