Bibliography

Orlova, V. F., and B. S. Tuniyev. 1989. On the taxonomy of the Caucasian common toads belonging to the group Bufo bufo verrucosissimus (Pallas) (Amphibia, Anura, Bufonidae). Byulleten Moskovskogo Obshchevstva Ispytatelei Prirody 94: 13–24.