TY - CONF A1 - Ferrell, J T1 - Fair trade ethanol: fuel production from coffee wastes. Y1 - 2009/04/19 N1 - SU833921 ER - TY - CONF A1 - Ferrell, J T1 - Fair trade ethanol: fuel production from coffee wastes. Y1 - 2009/02/ N1 - SU833921 ER - TY - CONF A1 - Ferrell, J T1 - Fair trade ethanol: fuel production from coffee wastes. Y1 - 2009/03/ N1 - SU833921 ER -