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2. Observational study of behavior: sampling methods;Altmann;Behaviour,1974
3. The role of cacao plantations in the conservation of the Atlantic forest of Southern Bahia, Brazil;Alves,1990
4. The ecological role of biodiversity in agroecosystems;Altieri;Agric. Ecosyst. Environ.,1999
5. Owl monkey populations in Latin America: field work and conservation;Aquino,1994