00441nam a2200157 a 450000500170000008200160001710000200003324500410005326000240009430000250011863000220014396400160016599700120018199900170019395200730021020251203091157.0  a333.79bPIR  aPirog Robert L.  aEnergy economics theory and practice  aPrentice Hallc1987  av,328p.b22 cm.cPB.  aEnergy  economics  bcdefg_  a32995 C  c32763d32763  00104070aPUbPUd1999-08-23l0o333.79 PIRp32995q1999-08-31yBK