Matches in Library of Congress for { ?s ?p 1981. }
- 80023887 date "1981".
- 80023888 date "1981".
- 80023889 date "1981".
- 80023893 date "1981".
- 80023895 date "1981".
- 80023897 date "1981".
- 80023898 date "1981".
- 80023899 date "1981".
- 80023900 date "1981".
- 80023902 date "1981".
- 80023906%2F%2Fr84 date "1981".
- 80023909 date "1981".
- 80023910 date "1981".
- 80023911 date "1981".
- 80023912 date "1981".
- 80023913 date "1981".
- 80023914%2F%2Fr942 date "1981".
- 80023915%2F%2Fr95 date "1981".
- 80023916 date "1981".
- 80023919 date "1981".
- 80023922%2F%2Fr84 date "1981".
- 80023928 date "1981".
- 80023929%2F%2Fr842 date "1981".
- 80023930 date "1981".
- 80023931 date "1981".
- 80023936 date "1981".
- 80023938 date "1981".
- 80023942 date "1981".
- 80023943%2F%2Fr893 date "1981".
- 80023944%2F%2Fr942 date "1981".
- 80023951 date "1981".
- 80023955 date "1981".
- 80023956 date "1981".
- 80023957 date "1981".
- 80023958 date "1981".
- 80023959 date "1981".
- 80023962%2F%2Fr852 date "1981".
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- 80023969 date "1981".
- 80023971%2F%2Fr86 date "1981".
- 80023973 date "1981".
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- 80023989%2F%2Fr84 date "1981".
- 80023990 date "1981".
- 80023991 date "1981".
- 80023996 date "1981".
- 80023999 date "1981".
- 80024000 date "1981".
- 80024003 date "1981".
- 80024008 date "1981".
- 80024011 date "1981".
- 80024013%2F%2Fr85 date "1981".
- 80024014 date "1981".
- 80024018 date "1981".
- 80024020 date "1981".
- 80024021 date "1981".
- 80024026 date "1981".
- 80024031%2F%2Fr96 date "1981".
- 80024032 date "1981".
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- 80024040%2FMN%2Fr84 date "1981".
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- 80024042 date "1981".
- 80024043 date "1981".
- 80024044 date "1981".
- 80024045 date "1981".
- 80024047 date "1981".
- 80024052 date "1981".
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- 80024055 date "1981".
- 80024056 date "1981".
- 80024057 date "1981".
- 80024062 date "1981".
- 80024067%2F%2Fr852 date "1981".
- 80024069 date "1981".
- 80024070 date "1981".
- 80024071 date "1981".
- 80024072 date "1981".
- 80024074 date "1981".
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- 80024080%2F%2Fr86 date "1981".
- 80024083 date "1981".
- 80024085 date "1981".
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- 80024087 date "1981".
- 80024094 date "1981".
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- 80024100 date "1981".
- 80024102 date "1981".
- 80024104%2F%2Fr83 date "1981".
- 80024105 date "1981".
- 80024108 date "1981".
- 80024109%2F%2Fr86 date "1981".
- 80024112 date "1981".
- 80024118 date "1981".