00331nam a2200109Ia 450000500170000008000180001710000230003524500860005826000380014430000200018258300190020220260716043620.0  a08.11.01 S464  aLandsberg, Hans H.  aSelected studies on energy : background papers for energy : the next twenty years  bBallinger Pub.aCambridgeGBc1980  axv, [1], 439 p.  c10/18/05kJOYD