| 其他書名 | Primary Triangulation on the One Hundred and Fourth Meridian, and on the Thirty-ninth Parallel in Colorado, Utah, Nevada |
| 出版 | U.S. Government Printing Office, 1914 |
| URL | http://books.google.com.hk/books?id=124iAQAAIAAJ&hl=&source=gbs_api |
| EBook | FULL_PUBLIC_DOMAIN |