000
00281nam a2200133Ia 4500
100
_a
Siemens
490
_v
33
942
_c
BK
654
_a
operation
245
_a
Mode of operation of the trial
260
_b
Wiley eastern
_a
New Delhi
_c
1991
300
_a
65
546
_a
ENGLISH
999
_c
33696
_d
33696