1.

図書
図書
1. World population prospects : the 2000 revision
United Nations. Department of Economic and Social Affairs. Population Division
出版情報: New York : United Nations, 2001
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2.

図書
図書
2. The sex and age distribution of the world population
United Nations. Department of Economic and Social Affairs. Population Division
出版情報: New York : United Nations, 2001
シリーズ名: World population prospects : the 2000 revision ; v. 2
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