| 000 | 01038cam a2200181ua 4500 | ||
|---|---|---|---|
| 020 | _c8.50 | ||
| 041 |
_aeng _h |
||
| 082 |
_a622.142 _bIND/CO |
||
| 110 | 1 |
_aIndian Standards Institution . _b _c(New Delhi ) |
|
| 245 |
_aCode of practice for sub surface exploration by pits, trenches, drifts and shafts, IS 4453-1980 / _cIndian Standards Institution. _hTextual Documents |
||
| 250 |
_a1 / _b. |
||
| 260 |
_aNew Delhi : _bIndian Standards Institution , _c1980. |
||
| 300 | _a18 ; . | ||
| 365 | _a8.50 | ||
| 504 | _a | ||
| 942 | _cBK | ||
| 999 |
_c261754 _d261754 |
||