000
00289nam a2200109Ia 4500
008
180713s9999 xx 000 0 und d
082
_a
624
_b
ISI-I
245
0
_a
INDIAN STANDARD SPECIFICATON FOR BLOCKBOARDS
_b
: ISI NO. 1659-1979
260
_a
ND
_b
ISI
_c
1980
270
_a
LUCKNOW
942
_c
GB
999
_c
2515
_d
2515