Não informado. Report on the Animal Health Services in Great Britain. Ministry of Agriculture, Fisheries and Food.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Report on the Animal Health Services in Great Britain. London: Ministry of Agriculture, Fisheries and Food.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Report on the Animal Health Services in Great Britain. Ministry of Agriculture, Fisheries and Food.
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