Cita APA

Bums, J. R., & Ramirez, M. A. (1990). Annual pattern of reproduction of the bagre, Arius guatemalensis (Pisces: Ariid.

Chicago Style Citation

Bums, John R., i Miguel A. Ramirez. Annual Pattern of Reproduction of the Bagre, Arius Guatemalensis (Pisces: Ariid. 1990.

Cita MLA

Bums, John R., i Miguel A. Ramirez. Annual Pattern of Reproduction of the Bagre, Arius Guatemalensis (Pisces: Ariid. 1990.