Matches in Library of Congress for { ?s ?p 1981. }
- 80084578 date "1981".
- 80084579 date "1981".
- 80084580 date "1981".
- 80084591%2F%2Fr85 date "1981".
- 80084592 date "1981".
- 80084593 date "1981".
- 80084594 date "1981".
- 80084595 date "1981".
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- 80084604%2F%2Fr89 date "1981".
- 80084605%2F%2Fr88 date "1981".
- 80084606 date "1981".
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- 80084611 date "1981".
- 80084612 date "1981".
- 80084613%2F%2Fr932 date "1981".
- 80084617%2F%2Fr86 date "1981".
- 80084619 date "1981".
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- 80084625 date "1981".
- 80084628 date "1981".
- 80084629 date "1981".
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- 80084633%2F%2Fr92 date "1981".
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- 80084640 date "1981".
- 80084642%2F%2Fr96 date "1981".
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- 80084648 date "1981".
- 80084649 date "1981".
- 80084650 date "1981".
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- 80084670 date "1981".
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- 80084718 date "1981".
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- 80084721 date "1981".
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- 80084726 date "1981".
- 80084728 date "1981".
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- 80084738 date "1981".
- 80084739 date "1981".
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- 80084775 date "1981".
- 80084776 date "1981".
- 80084777 date "1981".
- 80084778 date "1981".
- 80084782 date "1981".
- 80084785 date "1981".
- 80084786 date "1981".
- 80084787 date "1981".
- 80084788 date "1981".
- 80084789 date "1981".
- 80084790 date "1981".