Matches in Library of Congress for { ?s ?p 1981.. }
- 80009023%2F%2Fr982 created "1981.".
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- 80014038%2F%2Fr892 created "1981.".
- 80014079%2F%2Fr85 created "1981.".
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- 80014174 created "1981.".
- 80014183%2F%2Fr963 created "1981.".