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Population Problems in the United States and Canada. An Outgrowth of Papers Presented at the Eighty-sixth Annual Meeting of the American Statistical Association, December 1924. Edited by Louis J. Dublin

出版	Houghton Mifflin, 1926
URL	http://books.google.com.hk/books?id=6d9tQwAACAAJ&hl=&source=gbs_api