APA (7th ed.) Citation

United States. Congressional Budget Office & ProQuest (Firm). (2009). Historical Effective Federal Tax Rates: 1979 to 2006. [U.S. G.P.O.].

Chicago Style (17th ed.) Citation

United States. Congressional Budget Office and ProQuest (Firm). Historical Effective Federal Tax Rates: 1979 to 2006. [Washington]: [U.S. G.P.O.], 2009.

MLA (9th ed.) Citation

United States. Congressional Budget Office and ProQuest (Firm). Historical Effective Federal Tax Rates: 1979 to 2006. [U.S. G.P.O.], 2009.