Cita APA

Vari, R. P., & Ortega, H. (1986). The catfishes of the neotropical family helogenidae (ostariphysi: Siluroidei). Washington, D. C.: Smithsonian Institution Press.

Citación estilo Chicago

Vari, Richard P., y Hernán Ortega. The Catfishes of the Neotropical Family Helogenidae (ostariphysi: Siluroidei). Washington, D. C.: Smithsonian Institution Press, 1986.

Cita MLA

Vari, Richard P., y Hernán Ortega. The Catfishes of the Neotropical Family Helogenidae (ostariphysi: Siluroidei). Washington, D. C.: Smithsonian Institution Press, 1986.