000 00299nam a2200109Ia 4500
008 160607s9999 xx 000 0 und d
100 _aTilton, John E
_921299
245 _aU S Energy R 7 & D Policy: The Role of Economics
260 _bResource for the future
260 _c1974
300 _aWashington
999 _c39282
_d39282