Abrams, David. "Peace Like a River." January Magazine. http://www.januarymagazine.com/fiction/peaceriver.html> (12 Jan. 2004).
"Author BIography."July 2003.<http://www.booksense.com/people/archive/engerlief.jsp>(9 jan. 2004)
Barton, John D. "Butch Cassidy." 1992.http://www.media.utah.edu/UHE/c/CASSIDY, BUTCH.html (12 Jan 2004)
Combs, Marion Kester. "Zane Grey's West Society."1995. http://www.zanegreysws.org/zgbio.htm (13 Jan 2004)
Enger, Lief. Peace Like A River. New York:Grove Press, 2001.
Hooper, Brad. "Peace Like a River." 2003. http://archive.ala.org/booklist/v97/adult/my2/02enger.html (12 Jan. 2004).
Merritt, J. "Zane Grey Museum". 2003. http://www.nps.gov/upde/zgmuseum01.htm. (11 Jan 2003)
Mudge, Alden."Riding the wave of Lief Enger's dazzling debut."<http://www.bookpage.com/0109bp/lief_enger.html>(9 jan. 2004).
Ogle, Connie. "Landscape, kids inspired Leif Enger's outlaws." Knight Ridder Newspapers.(20 Nov. 2002). Online. Galenet. 9 Jan. 2004.
"Peace Like a River." http://search.barnesandnoble.com/booksearch/isbuInquiry.asp?userid=2wlyg3b01&isbn=0802139256&itm=1 (12 Jan. 2004).
Uhler, John William. "Badlands National Park." 1997. http://www.badlands.nationalpark.com/ (13 Jan 2004)
"Vintageairstream.com" http://www.vintageairstream.com/myrtle_home.html (14 Jan 2004)