(1979). Community survey of orchard fruit trees 1977. Luxembourg: Office for official publications of the European Communities.
Παραπομπή Chicago StyleCommunity Survey of Orchard Fruit Trees 1977. Luxembourg: Office for official publications of the European Communities, 1979.
Παραπομπή MLACommunity Survey of Orchard Fruit Trees 1977. Luxembourg: Office for official publications of the European Communities, 1979.
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