| 000 | 00741nam a2200217Ia 4500 | ||
|---|---|---|---|
| 008 | 170503s9999||||xx |||||||||||||| ||und|| | ||
| 080 | _a55(788) | ||
| 100 | 1 | _aHARBOUR, R. L. | |
| 245 | 0 |
_aCoal resources of Trinidad-Aguilar area Las Animas and Huerfano counties, Colorado / _cby R. L. Harbour and G. H. Dixon. |
|
| 260 |
_aWashington : _bUnited States Government Printing Office, _c1959 |
||
| 300 | _aP. 446-488 + map. -- | ||
| 336 |
_2isbdcontent _aTexto (visual) |
||
| 337 |
_2isbdmedia _3Impreso _asin mediación |
||
| 490 | _aGeological Survey Bulletin | ||
| 490 | _v 1072-G | ||
| 650 | _aColorado | ||
| 650 | _aGeología | ||
| 942 | _2cdu | ||
| 942 | _cBK | ||
| 999 |
_c21240 _d21240 |
||