APA (7th ed.) Citation

Neotropical Ornithological Society. (1990). Ornitología neotropical. Neotropical Ornithological Society.

Chicago Style (17th ed.) Citation

Neotropical Ornithological Society. Ornitología Neotropical. [United States?]: Neotropical Ornithological Society, 1990.

MLA (9th ed.) Citation

Neotropical Ornithological Society. Ornitología Neotropical. Neotropical Ornithological Society, 1990.

Warning: These citations may not always be 100% accurate.