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100   $a20040622d1997----km-y0itay50------ba
101 0 $aeng
102   $aCH
105   $a--------001cy
200 1 $aInternational migration statistics$eguidelines for improving data collection systems$fR[ichard] E. Bilsborrow, Graeme Hugo ... [et al.]
210   $aGenève$cInternational Labour Office$d©1997
215   $axii, 441 p.$ctab.$d25 cm
320   $aContiene bibl. (pp. 411-425)
610 0 $aMigrazioni$aStatistiche
676   $a304.807 27$v21$zita
702  1$aBilsborrow,$bRichard E.
702  1$aHugo,$bGraeme
801  0$aIT$bUNINA$gRICA$2UNIMARC
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959   $aBFS
996   $aInternational migration statistics$9668005
997   $aUNINA