| 000 | 00391nam a2200109Ia 4500 | ||
|---|---|---|---|
| 082 |
_aIS CODE _bB.I.S |
||
| 100 | _aBureau of Indian Standards[BIS] | ||
| 245 | _aIS:4122-1967. Indian standard method of test for surface softening of natural building stones by exposure to acidic atmospheres. | ||
| 260 |
_aNew Delhi _bBureau of Indian Standards _c1990 |
||
| 300 | _a6p. | ||
| 890 | _aIndia | ||
| 999 |
_c18955 _d18955 |
||