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County population estimates
(1988)
Resident vital statistics of cities and counties, New York State, 1940-1949 : Births, stillbirths, infant mortality, deaths from important causes, and cases of certain reportable diseases
(1950)
Facts of life and death
(1974)
Introduction to the mathematics of population
Keyfitz, Nathan, (1977)
Population change and social policy
Keyfitz, Nathan, (1982)
Urban influence on farm family size
Keyfitz, Nathan, (1980)