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100   $a20000920d1991----km-y0itay50------ba
101 0 $aENG
200 1 $a<<The >>sex and age distributions of population$ethe 1990 revision of the United Nations global population estimates and projections$fUnited Nations : Department of international economic and social affairs
210   $aNew York$cUnited Nations$d1991
215   $a391 p.$d26 cm
225 1 $aPopulation studies$v122
610 0 $aDemografia
610 0 $aDemografia$astatistiche internazionali
610 0 $aPopolazione$adistribuzione
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710 11$aNazioni Unite.$bDepartment of Economic and Social Affairs$0493245
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996   $aSex and age distributions of population$9435032
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