APA

Kattan G. H., .Food habits and social organization of Acorn Woodpeckers in Colombia. : .

Chicago

Kattan Gustavo H, .Food habits and social organization of Acorn Woodpeckers in Colombia. : .

Harvard

Kattan G. H., .Food habits and social organization of Acorn Woodpeckers in Colombia. : .

MLA

Kattan Gustavo H, .: . .