Matches in Library of Congress for { ?s ?p Research congresses.. }
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- 74400002 subject "Research congresses.".
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- 84028254 subject "Research congresses.".
- 85021618 subject "Research congresses.".
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- 86011104 subject "Research congresses.".
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- 86027267%2F%2Fr892 subject "Research congresses.".
- 88008086 subject "Research congresses.".
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- 89011390 subject "Research congresses.".
- 89012035 subject "Research congresses.".
- 89024434 subject "Research congresses.".
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- 90010087 subject "Research congresses.".
- 90012033 subject "Research congresses.".
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- 93230741 subject "Research congresses.".
- 94100486 subject "Research congresses.".
- 95131743 subject "Research congresses.".
- 95169671 subject "Research congresses.".
- 99458422 subject "Research congresses.".