Expanding the role of biofuels for America : field hearing before the Committee on Agriculture, Nutrition, and Forestry, United States Senate, One Hundred Eleventh Congress, first session, September 1, 2009.

MLA

United States. Expanding the role of biofuels for America : field hearing before the Committee on Agriculture, Nutrition, and Forestry, United States Senate, One Hundred Eleventh Congress, first session, September 1, 2009. Washington : United States Government Printing Office Jan. 2011

APA

United States. (2009). Expanding the role of biofuels for America : field hearing before the Committee on Agriculture, Nutrition, and Forestry, United States Senate, One Hundred Eleventh Congress, first session, September 1, 2009. Washington : United States Government Printing Office.

Chicago

United States. Expanding the role of biofuels for America : field hearing before the Committee on Agriculture, Nutrition, and Forestry, United States Senate, One Hundred Eleventh Congress, first session, September 1, 2009. Washington : United States Government Printing Office Jan. 2011