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› Home › Science Corners › Energy Corner › Renewable SourcesBiofuels |  | By Lihong Lu McPhail and Bruce A. Babcock, pp. 24, 2008 [source: CARD, Iowa State University] |
|  |  |  | By Mindy L. Baker, Dermot J. Hayes, Bruce A. Babcock, p. 33, 2008 [source: CARD, Iowa State University] |
|  |  |  | By Corinne Langinier and Bruce A. Babcock, p. 33, 2006 [source: CARD, Iowa State University] |
|  |  |  | by Robert Wallace, Kelly Ibsen, Andrew McAloon and Winnie Yee, pp. 69, 2005 [source: U.S. Department of Energy] |
|  |  |  | By Andrew McAloon, Frank Taylor, Winnie Yee, Kelly Ibsen and Robert Wooley, pp. 43, 2000 [source: U.S. Department of Energy] |
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