000
00268nam a2200109Ia 4500
008
220201s1985 xx 000 0 eng d
082
_a
621
_b
BAN
100
_a
Banwat,RA etc.
245
0
_a
T.B of applied physics
260
_b
India publishing House
_c
1985
942
_2
ddc
999
_c
83483
_d
83483