Matches in Library of Congress for { ?s ?p 1981. }
- 80053914 date "1981".
- 80053915 date "1981".
- 80053917 date "1981".
- 80053918 date "1981".
- 80053919 date "1981".
- 80053920 date "1981".
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- 80053928 date "1981".
- 80053929 date "1981".
- 80053930 date "1981".
- 80053932 date "1981".
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- 80054100 date "1981".
- 80054101 date "1981".
- 80054102 date "1981".
- 80054106 date "1981".
- 80054119 date "1981".
- 80054120 date "1981".