Referencias

 

Uhlenbroek, Charlotte. Vida animal. Pearson Alhambra, 2009. Pág. 479.

Alderton, David. The encyclopedia of animals. Chartwell books, Inc., 2009. Pp. 317-323, 325-327, 330-334, 337.

Animals, a visual encyclopedia. Smithsonian. 2012. Pp. 38-41.

World of animals Magazine. Imagine publishing.

Zabludoff, Marc. Monkeys. Marshall Cavendish, 2007.

McDaniel, Melissa. Monkeys. Marshall Cavendish, 2004.

http://animals.sandiegozoo.org/animals/monkey

http://en.wikipedia.org/wiki/Monkey

http://www.bbc.com/earth/story/20141006-the-monkey-that-became-a-midwife

http://www.ncbi.nlm.nih.gov/pubmed/8700203