| 000 | 00734nam a2200217Ia 4500 | ||
|---|---|---|---|
| 999 |
_c21377 _d21377 |
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| 005 | 20230523101002.0 | ||
| 008 | 170503s9999||||xx |||||||||||||| ||und|| | ||
| 040 | _aAranzadi Liburutegia | ||
| 080 | _a55(788) | ||
| 100 | 1 |
_aJohnson, Ross B. _9485347 _d1919- |
|
| 245 | 1 | 0 |
_aCoal resources of the Trinidad coal field in Huerfano and Las Animas counties, Colorado / _cby Ross B. Johnson. |
| 260 |
_aWashington : _bUnited States Government Printing Office, _c1961 |
||
| 300 | _aP. 130-180 + map. -- | ||
| 336 |
_2isbdcontent _aTexto (visual) |
||
| 337 |
_2isbdmedia _3Impreso _asin mediación |
||
| 490 | _aGeological Survey Bulletin | ||
| 490 | _v 1112-E | ||
| 650 |
_aColorado _91418510 |
||
| 650 |
_aGeología _9228 |
||
| 942 | _2cdu | ||
| 942 |
_cBK _2cdu |
||