00293cam a22001097a 4500008004000000082001300040245005400053260002800107300001000135650002000145650001800165180718b2000   xxu||||| |||| 00| 0 eng d  aY26 En89  aEnviroscope: manuals for college teachers, energy  aNew DelhibOxfordc2000  a160p.  aPower resources  aEnergy policy