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World Population: an Analysis of Vital Data. (A Research Program Conducted at the Population Research and Training Center of the University of Chicago.) [By] Nathan Keyfitz and Wilhelm Flieger

University of Chicago. Population Research and Training Center

出版	University of Chicago Press, 1968
URL	http://books.google.com.hk/books?id=EM4zMwEACAAJ&hl=&source=gbs_api