Matches in Library of Congress for { ?s ?p Calendar Mathematics.. }
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- 00031263 subject "Calendar Mathematics.".
- 2001035654 subject "Calendar Mathematics.".
- 2003318976 subject "Calendar Mathematics.".
- 2005056159 subject "Calendar Mathematics.".
- 2006489352 subject "Calendar Mathematics.".
- 2007024347 subject "Calendar Mathematics.".
- 96045964 subject "Calendar Mathematics.".