Matches in Library of Congress for { ?s ?p 1981. }
- 80025792 date "1981".
- 80025794%2F%2Fr962 date "1981".
- 80025796%2F%2Fr842 date "1981".
- 80025797%2F%2Fr903 date "1981".
- 80025798%2F%2Fr922 date "1981".
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- 80025802 date "1981".
- 80025803 date "1981".
- 80025804 date "1981".
- 80025806 date "1981".
- 80025807 date "1981".
- 80025808%2F%2Fr85 date "1981".
- 80025809 date "1981".
- 80025810 date "1981".
- 80025811%2F%2Fr85 date "1981".
- 80025812 date "1981".
- 80025813 date "1981".
- 80025814 date "1981".
- 80025815 date "1981".
- 80025817 date "1981".
- 80025818%2F%2Fr96 date "1981".
- 80025819%2F%2Fr90 date "1981".
- 80025820%2F%2Fr852 date "1981".
- 80025821%2F%2Fr93 date "1981".
- 80025822 date "1981".
- 80025823 date "1981".
- 80025824 date "1981".
- 80025825%2F%2Fr852 date "1981".
- 80025826%2F%2Fr85 date "1981".
- 80025827%2F%2Fr953 date "1981".
- 80025828 date "1981".
- 80025829%2F%2Fr83 date "1981".
- 80025830 date "1981".
- 80025831 date "1981".
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- 80025835 date "1981".
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- 80025840 date "1981".
- 80025841%2F%2Fr982 date "1981".
- 80025842 date "1981".
- 80025843%2F%2Fr863 date "1981".
- 80025844 date "1981".
- 80025845%2F%2Fr872 date "1981".
- 80025847%2F%2Fr83 date "1981".
- 80025849 date "1981".
- 80025852 date "1981".
- 80025854 date "1981".
- 80025856 date "1981".
- 80025857%2F%2Fr973 date "1981".
- 80025858 date "1981".
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- 80025861%2F%2Fr97 date "1981".
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- 80025868 date "1981".
- 80025869 date "1981".
- 80025871%2F%2Fr953 date "1981".
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- 80025875%2F%2Fr97 date "1981".
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- 80025877%2F%2Fr893 date "1981".
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- 80025882%2F%2Fr86 date "1981".
- 80025883%2F%2Fr892 date "1981".
- 80025884%2F%2Fr89 date "1981".
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- 80025886 date "1981".
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- 80025889%2F%2Fr87 date "1981".
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- 80025899%2F%2Fr84 date "1981".
- 80025900 date "1981".
- 80025901 date "1981".
- 80025902 date "1981".
- 80025903%2F%2Fr95 date "1981".
- 80025904%2F%2Fr863 date "1981".
- 80025905 date "1981".
- 80025907%2F%2Fr84 date "1981".
- 80025908 date "1981".
- 80025909%2F%2Fr923 date "1981".
- 80025910 date "1981".
- 80025911%2F%2Fr88 date "1981".
- 80025912%2F%2Fr92 date "1981".
- 80025913%2F%2Fr82 date "1981".