Gaya APA

Cihar, J., Jiri, I, M. (1977). Freshwater fishes a colour guide to familiar . London: London: Octopus Book Limeted; 1977.

Gaya MLA

Cihar, Jiri., Jiri, I., Maly,. "Freshwater fishes a colour guide to familiar". London: London: Octopus Book Limeted; 1977, 1977. Text.