000 00299nam a2200109Ia 4500
008 170101s1991 xx 000 0 und d
082 _a621.042 SOC
245 0 _aEnergy Conservation Industry 2
260 _aHyderabad
_bCentre of Plant Engineering Services
_c1991
300 _a116 p.
942 _2ddc
_cB
999 _c89416
_d89416