Matches in Library of Congress for { ?s ?p 1981.. }
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- 81151497%2F%2Fr91 created "1981.".
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- 81151522 created "1981.".
- 81151540 created "1981.".
- 81151542 created "1981.".
- 81151557 created "1981.".
- 81151577 created "1981.".
- 81151584%2F%2Fr88 created "1981.".
- 81151587 created "1981.".
- 81151588 created "1981.".