305.2 Altersgruppen
305.26 Personen höheren Alters
305.26086912 Ältere Immigranten 305.26086942 Arme ältere Personen 305.26091732 Ältere Personen--Städte 305.260973 Altern--soziologische Aspekte--USA, . . . 305.261 Ältere Männer 305.262 Ältere Frauen
Dewey Decimal Classification
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