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Nathan Keyfitz | Wilhelm Flieger World population growth and aging
demographic trends in the late twentieth century
Engels | 608 pagina's | University of Chicago Press, Chicago [etc.] | 1990
Gedrukt boek
Nathan Keyfitz | Wilhelm Flieger Population
facts and methods of demography
Engels | 613 pagina's | Freeman, San Francisco, Calif. | 1971
Gedrukt boek