Matches in Library of Congress for { ?s ?p Science Soviet Union Congresses.. }
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- 2013360944 subject "Science Soviet Union Congresses.".
- 77375788 subject "Science Soviet Union Congresses.".
- 83204206 subject "Science Soviet Union Congresses.".
- 87014174 subject "Science Soviet Union Congresses.".
- 90150268%2F%2Fr91 subject "Science Soviet Union Congresses.".
- 90210804 subject "Science Soviet Union Congresses.".
- 99220889 subject "Science Soviet Union Congresses.".