00383nam a2200133Ia 4500020001800000082001600018245006200034260004100096300001400137504002200151650002400173650001600197710003600213  a0-89843-219-7  a333.79 TWE- 0a2020 vision: the energy world in the next quarter century  aHampshirebThe Aspen Institutec1997  aviii, 196  aincludes appendix  aEnergy conservation  aForecasting  a21st Annual Summer Policy Forum