June 2010. See tables 16-19 for totals and rates for blacks, Hispanics, and whites. Broken down by year, gender, and age. See page 2 for "Selected characteristics
gov. [2021-03-02]. (原始内容存档于2021-05-04). US Healthcare Sector - Organization, Management and Payment Systems Handbook. IBP, Inc. : 24 [2021-03-03]. (原始内容存档于2021-09-03)
ranks fourth in services and third in agriculture (especially in cereals and the agri-food sector). It is the leading producer and exporter of farm products
The Winners And Losers In Chinese Capitalism (页面存档备份,存于互联网档案馆). 《富比士》. 2010年8月31日 [2016年1月22日] (英文). Online Extra: "China Is a Private-Sector Economy".