000
00271nam a2200109Ia 4500
008
220201s1990 xx 000 0 eng d
100
_a
Hare Har Lal & Sawhubg
245
0
_a
Applied physics
260
_b
New Delhi : Tata Mc Graw hill
_c
1990
300
_a
255
942
_2
ddc
999
_c
85188
_d
85188