Matches in Library of Congress for { ?s ?p 1981. }
- 2004342476 date "1981".
- 2004343212 date "1981".
- 2004346894 date "1981".
- 2004350158 date "1981".
- 2004350528 date "1981".
- 2004352770 date "1981".
- 2004359157 date "1981".
- 2004359183 date "1981".
- 2004359205 date "1981".
- 2004359525 date "1981".
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- 2004365758 date "1981".
- 2004366435 date "1981".
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- 2004369212 date "1981".
- 2004369246 date "1981".
- 2004369268 date "1981".
- 2004369569 date "1981".
- 2004369702 date "1981".
- 2004369713 date "1981".
- 2004370525 date "1981".
- 2004375767 date "1981".
- 2004377161 date "1981".
- 2004377407 date "1981".
- 2004377411 date "1981".
- 2004393550 date "1981".
- 2004393574 date "1981".
- 2004393592 date "1981".
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- 2004412320 date "1981".
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- 2004695014 date "1981".
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- 2005273077 date "1981".
- 2005273679 date "1981".
- 2005278213 date "1981".
- 2005323738 date "1981".
- 2005347411 date "1981".
- 2005351542 date "1981".
- 2005351665 date "1981".
- 2005352542 date "1981".
- 2005353803 date "1981".
- 2005363718 date "1981".
- 2005373928 date "1981".
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- 2005388022 date "1981".
- 2005388497 date "1981".
- 2005391093 date "1981".
- 2005410871 date "1981".
- 2005412541 date "1981".
- 2005412655 date "1981".