000
00231nam a2200109Ia 4500
008
220201s1981 xx 000 0 eng d
100
_a
ISI
245
0
_a
is:3812-1981
260
_b
Isi new delhi
_c
1981
300
_a
9
942
_2
ddc
999
_c
82802
_d
82802