Columbia subject headings:
Communism and social sciences--Congresses.
Produktivkraft Wissenschaft--Congresses.
Science and state--Germany (East)--Congresses.
Harvard subject headings:
Communism and science--Germany (East)
Communism and social sciences--Congresses.
Communism and social sciences--Germany (East)
Germany (East)--Economic conditions.
Produktivkraft Wissenschaft--Congresses.
Science and state--Germany (East)--Congresses.
Princeton subject headings:
Communism and science--Germany (East).
Communism and social sciences--Germany (East).
Germany (East)--Economic conditions.