Não informado. (1974). Commercial Fish Farmer and Aquaculture News. Catfish farmers of America.
Chicago-referens (17:e uppl.)Não informado. Commercial Fish Farmer and Aquaculture News. Little Rock, Ark: Catfish farmers of America, 1974.
MLA-referens (8:e uppl.)Não informado. Commercial Fish Farmer and Aquaculture News. Catfish farmers of America, 1974.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.