Thernstrom, S. (1964). Poverty and progress: Social mobility in a nineteenth century city. Harvard University Press.
Chicago-referens (17:e uppl.)Thernstrom, Stephan. Poverty and Progress: Social Mobility in a Nineteenth Century City. Cambridge: Harvard University Press, 1964.
MLA-referens (9:e uppl.)Thernstrom, Stephan. Poverty and Progress: Social Mobility in a Nineteenth Century City. Harvard University Press, 1964.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.