Matches in Library of Congress for { ?s ?p 1981. }
- 80005815 date "1981".
- 80005817%2F%2Fr84 date "1981".
- 80005818 date "1981".
- 80005824%2F%2Fr892 date "1981".
- 80005825 date "1981".
- 80005833 date "1981".
- 80005837 date "1981".
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- 80005840 date "1981".
- 80005841%2F%2Fr922 date "1981".
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- 80005846 date "1981".
- 80005849 date "1981".
- 80005851 date "1981".
- 80005852 date "1981".
- 80005853 date "1981".
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- 80005857 date "1981".
- 80005858 date "1981".
- 80005859 date "1981".
- 80005860 date "1981".
- 80005866 date "1981".
- 80005876 date "1981".
- 80005877 date "1981".
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- 80005880 date "1981".
- 80005881 date "1981".
- 80005885%2F%2Fr86 date "1981".
- 80005886 date "1981".
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- 80005888 date "1981".
- 80005889 date "1981".
- 80005891 date "1981".
- 80005894%2F%2Fr922 date "1981".
- 80005895 date "1981".
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- 80005898%2F%2Fr88 date "1981".
- 80005900%2F%2Fr85 date "1981".
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- 80005936%2F%2Fr852 date "1981".
- 80005937 date "1981".
- 80005938%2FMN date "1981".
- 80005940 date "1981".
- 80005941%2F%2Fr94 date "1981".
- 80005942 date "1981".
- 80005944%2F%2Fr93 date "1981".
- 80005945%2F%2Fr87 date "1981".
- 80005946 date "1981".
- 80005947%2F%2Fr83 date "1981".
- 80005955 date "1981".
- 80005957 date "1981".
- 80005958%2F%2Fr88 date "1981".
- 80005963 date "1981".
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- 80005981 date "1981".
- 80005982 date "1981".
- 80005984 date "1981".
- 80005989 date "1981".
- 80005990 date "1981".
- 80005992 date "1981".
- 80005996%2F%2Fr96 date "1981".
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- 80006001%2F%2Fr85 date "1981".
- 80006003%2F%2Fr95 date "1981".
- 80006005 date "1981".
- 80006006 date "1981".
- 80006009 date "1981".
- 80006011%2F%2Fr85 date "1981".
- 80006014 date "1981".
- 80006016 date "1981".
- 80006017 date "1981".
- 80006018%2F%2Fr853 date "1981".
- 80006019 date "1981".
- 80006020 date "1981".
- 80006021 date "1981".
- 80006022 date "1981".
- 80006023 date "1981".
- 80006024 date "1981".
- 80006027 date "1981".
- 80006028 date "1981".
- 80006029 date "1981".
- 80006030%2F%2Fr86 date "1981".
- 80006032%2F%2Fr90 date "1981".
- 80006033%2F%2Fr822 date "1981".
- 80006034%2F%2Fr922 date "1981".
- 80006036 date "1981".
- 80006037%2F%2Fr85 date "1981".
- 80006038 date "1981".
- 80006039 date "1981".
- 80006040 date "1981".