Habitat preferences, foraging patterns, intestinal parasitic infections, and diseases in mantled howler monkeys, Alouatta Palliata (Mammalia: primates: cebidae), in a rainforest in Northeastern Costa Rica - Stoner Smith, Kathryn Elizabeth (Thesis (doctor of philosophy)–Univesrity of Kansas. Faculty of the Graduate School. Department of Systematics and Ecology, 1993, 1993)