000
00312nam a2200121Ia 4500
008
220201s1990 xx 000 0 eng d
041
_a
ENG
100
_a
AGGARWAL, AMARJEET
245
0
_a
THYRISTOR ENGINEERING
260
_a
LONDON
_b
THAMES AND HUDSON PUBLISHING COMPANY
_c
1990
300
_a
VI; 704
942
_2
ddc
999
_c
56729
_d
56729