The state of food and agriculture 2008 State of food and agriculture 2008 : biofuels : prospects, risks and opportunities Biofuels : prospects, risks and opportunities Food and Agriculture Organization of the United Nations Biomass energy Energy crops industry Renewable energy sources 333 FOO 2008 C161 Or. Rome : Food and Agriculture Organization of the United Nations, 2008 2008 Text xi, 128 p. : ftp://ftp.fao.org/docrep/fao/011/i0100e/i0100e.pdf