Matches in Library of Congress for { ?s ?p 1981. }
- 80084791 date "1981".
- 80084792 date "1981".
- 80084794 date "1981".
- 80084797 date "1981".
- 80084799 date "1981".
- 80084800 date "1981".
- 80084801 date "1981".
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- 80084825 date "1981".
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- 80084952 date "1981".
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- 80084963 date "1981".
- 80084965 date "1981".