The Advance of agriculture, forest economy and agricultural sciences in Bulgaria during the years of the People's Power 1944-1969
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書誌事項
The Advance of agriculture, forest economy and agricultural sciences in Bulgaria during the years of the People's Power 1944-1969
Bulgarian Academy of Sciences Press, 1969
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注記
At head of title: Academy of Agricultural Sciences, Bulgaria. Center for Scientific, Technical and Economic Information in Agriculture and Forestry