References Colorado_War

atlas of colorado, kenneth a. erickson , albert w. smith, colorado associated university press (1985).
a colorado history, carl ubbeholde, maxine benson, duane a. smith isbn 0-87108-923-8, pruett publishing, boulder, colorado (first edition 1965).
the fighting cheyenne, george bird grinnell, university of oklahoma press (1956 original copyright 1915 charles scribner s sons), hardcover, 454 pages
life of george bent: written letters, george e. hyde, edited savoie lottinville, university of oklahoma press (1968), hardcover, 390 pages; trade paperback, 280 pages (march 1983) isbn 0-8061-1577-7 isbn 978-0806115771
the southern cheyenne, donald j. bertbrong, university of oklahoma press (1963), hardcover, 448 pages