1. Idaho's homegrown diesel fuel;Adamsak;Biologue,1992
2. Ahmed, I., Decker, J., Morris, D., 1994. How much Energy does it take to make a Gallon of Soydiesel? Institute for Local Self-Reliance, Washington, DC, 15 pp
3. American Biofuels Association & Information Resources, 1994. Biodiesel: A Technology, Performance, and Regulatory Overview. National SoyDiesel Development Board, Jefferson City, MO, 118 pp
4. Anonymous, 1994. Nebraska farmer co-op studies `biodiesel' options. Ag Industrial Materials and Products 1994, p. 9
5. Austrian Institute of Agricultural Engineering, 1991. Pilot Project `Biodiesel': Summary. Bundesanstalt für Landtechnik, Federal Institute of Agricultural Engineering, Wieselburg, Austria, 12 pp