APA

Nijssen H., Isbrucker I. J. & Gery J.On the species of Gymnorhamphichthys ellis, 1912, translucent sand dwelling Gymnotid fishes from South America (Pisces, Cypriniformes, Gymnotoidei). : .

Chicago

Nijssen H, Isbrucker I J and Gery J.On the species of Gymnorhamphichthys ellis, 1912, translucent sand dwelling Gymnotid fishes from South America (Pisces, Cypriniformes, Gymnotoidei). : .

Harvard

Nijssen H., Isbrucker I. J. and Gery J.On the species of Gymnorhamphichthys ellis, 1912, translucent sand dwelling Gymnotid fishes from South America (Pisces, Cypriniformes, Gymnotoidei). : .

MLA

Nijssen H, Isbrucker I J and Gery J.: . .