Cita APA

Fraga, R. M., & Kreft, S. (2007). Natural history and breeding behavior of the Olive (Psarocolius Yuracares) and Yellow-billed (p. Angustifrons Alfredi) oropendolas in Chapare province, Bolivia. Web

Citación estilo Chicago

Fraga, Rosendo Manuel, and Stefan Kreft. Natural History and Breeding Behavior of the Olive (Psarocolius Yuracares) and Yellow-billed (p. Angustifrons Alfredi) Oropendolas in Chapare Province, Bolivia. 2007.

Cita MLA

Fraga, Rosendo Manuel, and Stefan Kreft. Natural History and Breeding Behavior of the Olive (Psarocolius Yuracares) and Yellow-billed (p. Angustifrons Alfredi) Oropendolas in Chapare Province, Bolivia. 2007.