000
00246nam a2200109Ia 4500
008
220201s1962 xx 000 0 eng d
100
_a
ISI
245
0
_a
IS:6(3)-1962
260
_b
Indian Standard Institution
_c
1962
300
_a
74
942
_2
ddc
999
_c
81193
_d
81193