Matches in Library of Congress for { ?s ?p 1981. }
- 80039716 date "1981".
- 80039717 date "1981".
- 80039718 date "1981".
- 80039719 date "1981".
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- 80039830 date "1981".
- 80039831 date "1981".
- 80039832 date "1981".
- 80039833 date "1981".
- 80039834%2F%2Fr82 date "1981".