00352nam a2200121Ia 4500082002000000100002500020245004400045260004300089300002200132490006600154500000500220700000500225  a333.79bN832.EU  aNordhaus, William D.  aThe efficient use of energy resourcesb  aNew HavenbYale University Pressc1979  axxii, 161p. Index  aCowles foun. for research in Econ. at Yale Univ.v Mon. no.26  a  a