362.109 Historical, geographic, persons treatment
362.109173 Socioeconomic regions by concentration of population vi
362.109 Lịch sử, địa lý, con người
362.109173 Nghiên cứu khu vực kinh tế xã hội theo mật độ dân số it
362.109 Storia, geografia, persone
362.109173 Regioni socioeconomiche secondo la densità della popolazione
Dewey Decimal Classification
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