000 00286nam a2200121Ia 4500
008 170101s1980 xx 000 0 und d
082 _a333.79 KRE
100 _aKrenz J H
245 0 _aEnergy
260 _bHemsphere Publishing Corporation
_c1980
300 _a264 p
942 _2ddc
_cB
999 _c983016
_d983016