Não informado. (1959). Fishery investigations. Ministry of Agriculture, Fisheries and Food.
Chicago-referens (17:e uppl.)Não informado. Fishery Investigations. London: Ministry of Agriculture, Fisheries and Food, 1959.
MLA-referens (8:e uppl.)Não informado. Fishery Investigations. Ministry of Agriculture, Fisheries and Food, 1959.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.