Matches in Library of Congress for { ?s ?p 1981. }
- 80026799 date "1981".
- 80026800 date "1981".
- 80026801 date "1981".
- 80026802 date "1981".
- 80026804 date "1981".
- 80026805 date "1981".
- 80026806 date "1981".
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- 80026812 date "1981".
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- 80026816 date "1981".
- 80026818 date "1981".
- 80026819 date "1981".
- 80026820%2F%2Fr90 date "1981".
- 80026821 date "1981".
- 80026822 date "1981".
- 80026823 date "1981".
- 80026824%2F%2Fr94 date "1981".
- 80026825 date "1981".
- 80026826 date "1981".
- 80026827%2F%2Fr93 date "1981".
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- 80026835 date "1981".
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- 80026838 date "1981".
- 80026839 date "1981".
- 80026842 date "1981".
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- 80026844 date "1981".
- 80026845 date "1981".
- 80026846%2F%2Fr97 date "1981".
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- 80026854 date "1981".
- 80026855 date "1981".
- 80026856 date "1981".
- 80026857%2F%2Fr84 date "1981".
- 80026858%2F%2Fr922 date "1981".
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- 80026860 date "1981".
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- 80026862 date "1981".
- 80026863 date "1981".
- 80026864 date "1981".
- 80026865%2F%2Fr88 date "1981".
- 80026866 date "1981".
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- 80026872 date "1981".
- 80026873 date "1981".
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- 80026880 date "1981".
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- 80026882 date "1981".
- 80026883 date "1981".
- 80026884 date "1981".
- 80026885 date "1981".
- 80026886 date "1981".
- 80026888 date "1981".
- 80026889%2F%2Fr985 date "1981".
- 80026890%2F%2Fr982 date "1981".
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- 80026892 date "1981".
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- 80026897 date "1981".
- 80026898 date "1981".
- 80026899 date "1981".
- 80026900 date "1981".
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- 80026908 date "1981".
- 80026909 date "1981".
- 80026910 date "1981".
- 80026911 date "1981".
- 80026912 date "1981".
- 80026913 date "1981".
- 80026914 date "1981".
- 80026915 date "1981".
- 80026917%2F%2Fr94 date "1981".
- 80026919%2F%2Fr902 date "1981".
- 80026920 date "1981".
- 80026923 date "1981".