Não informado. (1930). Bulletin of the Ministry of Agriculture, Fisheries and Food. Ministry of Agriculture, Fisheries and Food.
Chicago-referens (17:e uppl.)Não informado. Bulletin of the Ministry of Agriculture, Fisheries and Food. London: Ministry of Agriculture, Fisheries and Food, 1930.
MLA-referens (8:e uppl.)Não informado. Bulletin of the Ministry of Agriculture, Fisheries and Food. Ministry of Agriculture, Fisheries and Food, 1930.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.