APA (7th ed.) Citation

Greenfield, D. W., & Glodek, G. S. (1977). Trachelyichthys exilis, a new species of catfish (Pisces, Auchenipteridae) from Peru. Field Museum of Natural History.

Chicago Style (17th ed.) Citation

Greenfield, David W., and Garrett S. Glodek. Trachelyichthys Exilis, a New Species of Catfish (Pisces, Auchenipteridae) from Peru. [Chicago]: Field Museum of Natural History, 1977.

MLA (9th ed.) Citation

Greenfield, David W., and Garrett S. Glodek. Trachelyichthys Exilis, a New Species of Catfish (Pisces, Auchenipteridae) from Peru. Field Museum of Natural History, 1977.