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101 1 $aeng
102   $aUS
105   $a----a---101yy
200 1 $aProceedings of the Conference on Geometry and Topology held at Harvard University, April 27-29, 1990$vVol. 1
210   $aBethlehem PA.$cLehigh University$d1991
300   $aSponsored by Lehigh University.
461  0$1001000148521
610 0 $aGeometria descrittiva, analitica, differenziale
710 12$aCONFERENCE ON GEOMETRY AND TOPOLOGY$eHarvard$f1990$0348091
801  0$aIT$bUNINA$gRICA$2UNIMARC
901   $aBK
912   $a990001111930403321
952   $a12-136F$b18730$fFI1
959   $aFI1
996   $aProceedings of the Conference on Geometry and Topology held at Harvard University, April 27-29, 1990$9337111
997   $aUNINA