Não informado. (1965). Plant Varieties and Seeds Gazette. Ministry of Agriculture, Fisheries and Food.
Chicago-viite (17. p.)Não informado. Plant Varieties and Seeds Gazette. Cambridge, Inglaterra: Ministry of Agriculture, Fisheries and Food, 1965.
MLA-viite (8. p.)Não informado. Plant Varieties and Seeds Gazette. Ministry of Agriculture, Fisheries and Food, 1965.
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