Cita APA (7a ed.)

Scrocchi, G., & Cei, J. M. A. M. (1991). A new species of the genus <i>Atractus</i> from the Northwestern Argentina (Serpentes, Colubridae).

Cita Chicago Style (17a ed.)

Scrocchi, Gustavo, y José Miguel Alfredo María Cei. A New Species of the Genus <i>Atractus</i> from the Northwestern Argentina (Serpentes, Colubridae). 1991.

Cita MLA (8a ed.)

Scrocchi, Gustavo, y José Miguel Alfredo María Cei. A New Species of the Genus <i>Atractus</i> from the Northwestern Argentina (Serpentes, Colubridae). 1991.