Zaldívar, M. E., Rocha, O., Glander, K. E., Aguilar, G., Huertas, A. S., Sánchez, R., & Wong, G. (2004). Distribution, ecology, life history, genetic variation, and risk of extinction of nonhuman primates from Costa Rica.

Zaldívar, María E., Oscar Rocha, Kenneth E. Glander, Gabriel Aguilar, Ana S. Huertas, Ronald Sánchez, και Grace Wong. Distribution, Ecology, Life History, Genetic Variation, and Risk of Extinction of Nonhuman Primates From Costa Rica. 2004.

Zaldívar, María E., et al. Distribution, Ecology, Life History, Genetic Variation, and Risk of Extinction of Nonhuman Primates From Costa Rica. 2004.