| 000 | nam a22 4500 | ||
|---|---|---|---|
| 245 | _aPrcssure grouting technical memorandom 646 | ||
| 260 |
_aColorado _bUnited States Department of the Interior Bureau of Recramation _c1957 |
||
| 710 | _aUnited States Department of the Interior Bureau of Recramation | ||
| 942 | _c22 | ||
| 999 |
_c5391 _d5391 |
||