United States. Office of Business Economics, Schwartz, C. F., & Graham, R. E. (1969). Personal income, by States, since 1929: A supplement to the Survey of current business. Greenwood Press.
Цитирование в стиле Чикаго (17-е изд.)United States. Office of Business Economics, Charles F. Schwartz, и Robert E. Graham. Personal Income, by States, Since 1929: A Supplement to the Survey of Current Business. New York: Greenwood Press, 1969.
Цитирование MLA (8-е изд.)United States. Office of Business Economics, et al. Personal Income, by States, Since 1929: A Supplement to the Survey of Current Business. Greenwood Press, 1969.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.