Matches in Library of Congress for { ?s ?p c1981-. }
- 80080175 dateCopyrighted "c1981-".
- 80081482 dateCopyrighted "c1981-".
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- 81014534 dateCopyrighted "c1981-".
- 81015360 dateCopyrighted "c1981-".
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- 81050586 dateCopyrighted "c1981-".
- 81050694 dateCopyrighted "c1981-".
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- 81066945%2F%2Fr86 dateCopyrighted "c1981-".
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- 81069410%2F%2Fr922 dateCopyrighted "c1981-".
- 81069753 dateCopyrighted "c1981-".
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- 81085518 dateCopyrighted "c1981-".
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- 81113310 dateCopyrighted "c1981-".
- 81119275 dateCopyrighted "c1981-".
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- 81145747 dateCopyrighted "c1981-".
- 81148787 dateCopyrighted "c1981-".
- 81149117 dateCopyrighted "c1981-".
- 81149872 dateCopyrighted "c1981-".