请介绍几位研究社会和人口结构的国外学者及其专著。
提问者：87945
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libref回答:
1. Japan's changing population structure / by Toshio Kuroda. Japan : Ministy of Foreign Affairs, 1973.
2. New directions in the social sciences and humanities in China / edited by Michael B. Yahuda. Basingstoke, Hampshire, England : Macmillan, 1987.
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