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Africa, Asia & Oceania : 1750 - 2005
Mitchell, Brian R., (2007)
The Americas : 1750 - 2005
Europe : 1750 - 2005
Social class differences in the uses of leisure
White, R. Clyde, (1955)
The social insurance movement
White, R. Clyde, (1944)
Hough, Cleveland, Ohio: a study of social life and change
Sussman, Marvin B., (1959)