| 其他書名 | In Two Parts ; Part 1: Summary of Industrial Development Possibilities ; European Technology on Lignitic Coals ; Occurrence and Properties ; Lignite Mining in North Dakota ; Preparation ; Storage and Transportation ; Appendix-statistics and Costs of Lignite in North Dakota |
| 出版 | U.S. Department of the Interior, Bureau of Mines, 1954 |
| URL | http://books.google.com.hk/books?id=9d0fuw39ihkC&hl=&source=gbs_api |
| EBook | FULL_PUBLIC_DOMAIN |