Matches in Library of Congress for { ?s ?p 1981. }
- 80024284 date "1981".
- 80024286 date "1981".
- 80024289 date "1981".
- 80024290 date "1981".
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- 80024436 date "1981".
- 80024437 date "1981".
- 80024438 date "1981".
- 80024439%2F%2Fr893 date "1981".
- 80024440 date "1981".