Economic and demographic change issues for the 1980's proceedings of the conference, Helsinki, 1978 = Actes de congres mutations economiques et demographiques : perspectives pour les annees 1980.
| निगमित लेखकों: | , , |
|---|---|
| स्वरूप: | पुस्तक |
| भाषा: | English |
| प्रकाशित: |
Liege
International Union for the Scientific Study of Population
c1979.
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| विषय: |