Сноски

1

United States Census of population: 1960. Families. Final Report PC (2)-4A /U.S. Department of commerce, Bureau of the census. Table 11.

2

Current population survey на сайте www.bls.gov/gps

3

Income, Poverty and Health Insurance Coverage in the United States: 2011. Newsroom. United States Census Bureau. September 12, 2012. Retrieved January 23, 2013. http://www.census.gov/newsroom/releases/archives/income_wealth/cbl2-172.html

4

См.: Инглхарт Р., Вельцель К. Модернизация, культурные изменения и демократия: последовательность человеческого развития. М.: Новое издательство, 2011.