^ 1.01.1V. Bogdanov, C. Woodstra and S. T. Erlewine, All music guide to rock: the definitive guide to rock, pop, and soul (Backbeat Books, 3rd edn., 2002), p. 1327.
^B. Horner and T. Swiss, Key terms in popular music and culture (Wiley-Blackwell, 1999), p. 104.
^J. Einarson, Desperados: The Roots of Country Rock (Rowman & Littlefield, 2001), ISBN0815410654, p. 1.