Buffalo Bill (1879). “The Life of Hon. William F. Cody, Known as Buffalo Bill, the Famous Hunter, Scout, and Guide: An Autobiography”, p.110, U of Nebraska Press
George R. R. Martin (2012). “George R. R. Martin's A Game of Thrones 5-Book Boxed Set (Song of Ice and Fire Series): A Game of Thrones, A Clash of Kings, A Storm of Swords, A Feast for Crows, and and A Dance with Dragons”, p.967, Bantam