Não informado. (1959). Fishery investigations. Ministry of Agriculture, Fisheries and Food.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Fishery Investigations. London: Ministry of Agriculture, Fisheries and Food, 1959.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Fishery Investigations. Ministry of Agriculture, Fisheries and Food, 1959.
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