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.
| Corporate Authors: | , , |
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| פורמט: | ספר |
| שפה: | English |
| יצא לאור: |
Liege
International Union for the Scientific Study of Population
c1979.
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| נושאים: |