Não informado. Shellfish situation and outlook. U.S. National Marine Fisheries Service.
Chicago-referens (17:e uppl.)Não informado. Shellfish Situation and Outlook. Washington: U.S. National Marine Fisheries Service.
MLA-referens (8:e uppl.)Não informado. Shellfish Situation and Outlook. U.S. National Marine Fisheries Service.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.