| 000 | 00338nam a2200121Ia 4500 | ||
|---|---|---|---|
| 082 |
_aIS Code _bI.S.I |
||
| 100 | _aBureau of Indian Standards[BIS] | ||
| 245 | _aIS:3764-1992. Indian standard excavation work : safety. | ||
| 260 |
_aNew Delhi _bBureau of Indian Standards _c1992 |
||
| 300 | _a11p. | ||
| 500 | _aENG | ||
| 890 | _aIndia | ||
| 999 |
_c18897 _d18897 |
||