Cita APA (7a ed.)

Cei, J. M. A. M., & Cohen, R. (1963). Electrophoretic Patterns and Systematic Relations in South American Toads'.

Cita Chicago Style (17a ed.)

Cei, José Miguel Alfredo María, y R. Cohen. Electrophoretic Patterns and Systematic Relations in South American Toads'. 1963.

Cita MLA (8a ed.)

Cei, José Miguel Alfredo María, y R. Cohen. Electrophoretic Patterns and Systematic Relations in South American Toads'. 1963.