Columbia subject headings:
Communist countries--Economic integration--Congresses.
Council for Mutual Economic Assistance--Congresses.
Technology and state--Communist countries--Congresses.
Harvard subject headings:
Communist countries--Economic integration--Congresses.
Council for Mutual Economic Assistance--Congresses.
Technology and state--Communist countries--Congresses.
Princeton subject headings:
Communism and technology.
Europe, Eastern--Economic integration.
Technological innovations--Europe, Eastern.