| 其他書名 | Chihuahua, Mexico : Guidebook, Sixth Annual Field Trip of the El Paso Geological Society, April 8, 1972 |
| 出版 | El Paso Geological Society, Department of Geological Sciences, University of Texas at El Paso, 1972 |
| URL | http://books.google.com.hk/books?id=vI9nxgEACAAJ&hl=&source=gbs_api |