Ruffed or Variegated Lemur. http://www.phillyzoo.org/pz/017_htm.htm The Zoological Society of Philadelphia, 1996.
Ruffed Lemurs. http://www.duke.edu/web/primate/bwrff2.html Duke Primate Center, August 27, 1998.
Black and White Ruffed Lemur. http://vygotsky.sfasu.edu/zoo/lemur.html
Black and White Ruffed Lemur. http://www.santabarbarazoo.org/ssplemur.html Lemur Media Productions, 1996.
Black-and-White Ruffed Lemur. http://www.selu.com/~bio/PrimateGallery/PrimateWeek/bw_ruffed/ Primate Information Net, 1997.
Black and White Ruffed Lemur. http://www.wildlifeeasyst.com/ruflemur.htm
Katz, Andrea. "Re: Reintroduction of Lemurs." E-mail to Becky Pigsley. 10 November, 1998.
Katz, Andrea. First Release of Captive-bred Lemurs Into Their Natural Habitat. Attachment with E-mail to Becky Pigsley. 10 November, 1998.
Ruffed Lemur: Varecia variegata Animal Data Sheet from Children's Folsom Zoo, December 1990