APA (7th ed.) Citation

Ridgely, R. S. (1976). A guide to the birds of Panama. Princeton Univ. Pr.

Chicago Style (17th ed.) Citation

Ridgely, Robert S. A Guide to the Birds of Panama. Princeton, NJ: Princeton Univ. Pr, 1976.

MLA (9th ed.) Citation

Ridgely, Robert S. A Guide to the Birds of Panama. Princeton Univ. Pr, 1976.

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