Matches in Library of Congress for { ?s ?p 1981. }
- 80025914 date "1981".
- 80025916 date "1981".
- 80025917 date "1981".
- 80025920 date "1981".
- 80025925 date "1981".
- 80025926 date "1981".
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- 80025962 date "1981".
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- 80026026 date "1981".
- 80026027 date "1981".
- 80026028 date "1981".
- 80026029 date "1981".
- 80026030 date "1981".
- 80026032 date "1981".
- 80026033 date "1981".
- 80026034 date "1981".
- 80026035%2F%2Fr86 date "1981".
- 80026036 date "1981".