Monthly prices for forest products. № 18 / United Nations, Economic Commission for Europe, Food and Agriculture Organization of the United Nations / Nations Unies, Commission économique pour l'Europe, Organisation des Nations Unies pour l'alimentation et l'agriculture. — Geneva : United Nations, 1983. — [2], 38 с. — (Timber bulletin for Europe ; vol. 35, suppl. 8) (Timber bulletin for Europe, 1983)