Matches in Library of Congress for { ?s ?p 1981.. }
- 80020424%2F%2Fr82 created "1981.".
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- 80021137%2F%2Fr82 created "1981.".
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- 80021148%2F%2Fr962 created "1981.".
- 80021151 created "1981.".
- 80021159%2F%2Fr923 created "1981.".