Paul Schullery, Marsha Karle (2013). “The Fishing Life: An Angler's Tales of Wild Rivers and Other Restless Metaphors”, p.23, Skyhorse Publishing, Inc.
Thaddeus Norris (1864). “The American Angler's Book: Embracing the Natural History of Sporting Fish, and the Art of Taking Them. With Instructions in Fly-fishing, Fly-making, and Rod-making; and Directions for Fish-breeding. To which is Appended, Dies Piscatoriæ: Describing Noted Fishing-places, and the Pleasure of Solitary Fly-fishing”, p.29
Thaddeus Norris (1864). “The American Angler's Book: Embracing the Natural History of Sporting Fish, and the Art of Taking Them. With Instructions in Fly-fishing, Fly-making, and Rod-making; and Directions for Fish-breeding. To which is Appended, Dies Piscatoriæ: Describing Noted Fishing-places, and the Pleasure of Solitary Fly-fishing”, p.567