Mottram, James (2006). The Sundance Kids : how the mavericks took back Hollywood. NY: Faber & Faber, Inc. p. 151. ISBN978-0-86547-967-8. OCLC148677482.
Mottram, James (2006). The Sundance Kids : how the mavericks took back Hollywood. NY: Faber & Faber, Inc. p. 156. ISBN978-0-86547-967-8. OCLC148677482.