000
00284nam a2200109Ia 45e0
008
181001s1974 xx 000 0 und d
100
_a
Khanna D.R.
245
0
_a
Modern physics
260
_b
Khanna Pub.
_c
1974
300
_a
448
942
_2
ddc
_c
BK
999
_c
2429
_d
2429