APA

Kuzmin S. L., . (1999). The amphibians of the former Soviet Union. : Pensoft.

Chicago

Kuzmin Sergei L, . 1999. The amphibians of the former Soviet Union. : Pensoft.

Harvard

Kuzmin S. L., . (1999). The amphibians of the former Soviet Union. : Pensoft.

MLA

Kuzmin Sergei L, . The amphibians of the former Soviet Union. : Pensoft. 1999.