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The effect of civilization on the people in European States
Hall, Charles, (1965)
Poverty programs and social mobility : focus on rural populations of lower social rank in Mississippi and the South
Kaufman, Harold F., (1966)
The poor and the poorest : a new analysis of the Ministry of Labour's Family Expenditure Surveys of 1953 - 54 and 1960
Abel-Smith, Brian, (1965)
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)