Это цитата сообщения lj_pogoda Оригинальное сообщение

The middle class http://en.wikipedia.org/wiki/Middle_class

The American middle class http://en.wikipedia.org/wiki/American_middle_class

The Household income in the United States http://en.wikipedia.org/wiki/Household_income_in_the_United_States

Upper class http://en.wikipedia.org/wiki/Upper_class

U and non-U English usage http://en.wikipedia.org/wiki/U_and_non-U

http://pogoda.livejournal.com/395038.html