Matches in Library of Congress for { ?s ?p 1981. }
- 80026551%2FMN date "1981".
- 80026552 date "1981".
- 80026553 date "1981".
- 80026554 date "1981".
- 80026555 date "1981".
- 80026556%2F%2Fr84 date "1981".
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- 80026568 date "1981".
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- 80026570%2F%2Fr82 date "1981".
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- 80026572 date "1981".
- 80026573 date "1981".
- 80026574 date "1981".
- 80026575%2F%2Fr85 date "1981".
- 80026576 date "1981".
- 80026578 date "1981".
- 80026579 date "1981".
- 80026580 date "1981".
- 80026581 date "1981".
- 80026583 date "1981".
- 80026584 date "1981".
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- 80026586 date "1981".
- 80026587 date "1981".
- 80026590%2F%2Fr943 date "1981".
- 80026592 date "1981".
- 80026593 date "1981".
- 80026594 date "1981".
- 80026596 date "1981".
- 80026597%2F%2Fr82 date "1981".
- 80026598%2F%2Fr83 date "1981".
- 80026599%2F%2Fr872 date "1981".
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- 80026601 date "1981".
- 80026602%2F%2Fr98 date "1981".
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- 80026606%2F%2Fr943 date "1981".
- 80026607 date "1981".
- 80026608 date "1981".
- 80026609 date "1981".
- 80026610 date "1981".
- 80026611 date "1981".
- 80026612%2F%2Fr83 date "1981".
- 80026614 date "1981".
- 80026616 date "1981".
- 80026617 date "1981".
- 80026619%2F%2Fr953 date "1981".
- 80026621%2F%2Fr883 date "1981".
- 80026623%2F%2Fr913 date "1981".
- 80026624 date "1981".
- 80026625 date "1981".
- 80026626 date "1981".
- 80026628%2F%2Fr842 date "1981".
- 80026629 date "1981".
- 80026630 date "1981".
- 80026631 date "1981".
- 80026632%2F%2Fr94 date "1981".
- 80026633%2F%2Fr83 date "1981".
- 80026634 date "1981".
- 80026635 date "1981".
- 80026636%2F%2Fr85 date "1981".
- 80026637%2FMN%2Fr85 date "1981".
- 80026638 date "1981".
- 80026640 date "1981".
- 80026641%2F%2Fr892 date "1981".
- 80026643 date "1981".
- 80026646 date "1981".
- 80026647%2F%2Fr893 date "1981".
- 80026648 date "1981".
- 80026649%2F%2Fr83 date "1981".
- 80026650 date "1981".
- 80026651 date "1981".
- 80026652 date "1981".
- 80026655 date "1981".
- 80026656 date "1981".
- 80026658 date "1981".
- 80026659 date "1981".
- 80026660%2F%2Fr86 date "1981".
- 80026662 date "1981".
- 80026664 date "1981".
- 80026665%2F%2Fr922 date "1981".
- 80026666%2F%2Fr83 date "1981".
- 80026667 date "1981".
- 80026668 date "1981".
- 80026669 date "1981".
- 80026670%2F%2Fr82 date "1981".
- 80026672%2F%2Fr943 date "1981".
- 80026675 date "1981".
- 80026676 date "1981".
- 80026677%2F%2Fr82 date "1981".
- 80026678 date "1981".