Não informado. (1956). Farm Bulletin. Republic of Ireland, Department of Agriculture and Fisheries.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Farm Bulletin. Dublin: Republic of Ireland, Department of Agriculture and Fisheries, 1956.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Farm Bulletin. Republic of Ireland, Department of Agriculture and Fisheries, 1956.
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