000
00250nam a2200109 4500
008
160616s 000 0
245
_a
Electricity and magnetism
100
_a
Matveev, A.N
500
_a
C6 M61
942
_c
BK
_2
BK8721
_0
2
080
_a
537 PUR
999
_c
8721
_d
8721