Konferencija na temu - "Prirodnye osnovy razvitija sel'skogo khozjajjstva i vedenie khozjajjstva na sel'skikh territorijakh" (poznan'-Turev 7-8.IV.1981)
EN
A conference on the subject "The natural foundations of agricultural development and economic activities in rural areas" (Poznan-Turew t-8th April, 1981)