Status of crayfish stocks, fisheries, diseases and culture in Europe : report of the FAO European Inland Fisheries Advisory Commission (EIFAC) Working Party on Crayfish - (:unkn) unknown (Riista- ja kalatalouden tutkimuslaitos, 1990)
Keywords: ravut; ravustus; rapu; ravustus - Eurooppa; kalat; kalataudit; kalanviljely; eläintaudit; Eurooppa