APA (7th ed.) Citation

Verhelst, J. C. (2001, December). Birds of Manizales - Caldas, Colombia. Biota Colombiana.

Chicago Style (17th ed.) Citation

Verhelst, Juan C. "Birds of Manizales - Caldas, Colombia." Biota Colombiana Dec. 2001.

MLA (9th ed.) Citation

Verhelst, Juan C. "Birds of Manizales - Caldas, Colombia." Biota Colombiana, Dec. 2001.

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