APA

Whitehead D. R., .Annnotated key to described species of the neotropical genus Glyptolenus (Carabidae: Pterostichini: Agoni). : .

Chicago

Whitehead Donald R, .Annnotated key to described species of the neotropical genus Glyptolenus (Carabidae: Pterostichini: Agoni). : .

Harvard

Whitehead D. R., .Annnotated key to described species of the neotropical genus Glyptolenus (Carabidae: Pterostichini: Agoni). : .

MLA

Whitehead Donald R, .: . .