TY - BOOK ED - United Nations TI - Energy efficiency in transportation: alternatives for the future SN - 93-1-1044 U1 - 388 PY - 1993/// CY - New York PB - United Nations KW - Transporte KW - Conservación de la Energía KW - Eficiencia Energética KW - Combustibles N1 - 04087; Transport modes and energy intensity. Improving energy use in existing transport systems. Case studies on transport energy conservation in developing countries. World trends in transportation systems and their impact on developing countries. Technical aspects of the utilization of alternative transportation fuels ER -