000
00299nam a2200109Ia 4500
008
170101s1991 xx 000 0 und d
082
_a
621.042 SOC
245
0
_a
Energy Conservation Industry 2
260
_a
Hyderabad
_b
Centre of Plant Engineering Services
_c
1991
300
_a
116 p.
942
_2
ddc
_c
B
999
_c
89416
_d
89416