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Demographic and labour force analysis based on Eurostat data banks
(1988)
Demography and retirement : the twenty-first century
Rappaport, Anna M., (1993)
Razvitie naselenija i ego trudovogo potenciala
Stešenko, Valentina S., (1985)
Ecologie des essences forestières Américaines : erosion et reboisement
(1952)
The measurement of agricultural production and food consumption
(1955)
Seasonal adjustment on electronic computers : report and proceedings of an international conference held in november 1960
Marris, Stephen, (1961)