| 其他書名 | Handling Rich Charges. Methods of charging rate of subsidence of the charge and accretions made. VII |
| 出版 | Department of Commerce, Bureau of Mines, 1931 |
| URL | http://books.google.com.hk/books?id=37EASJPwW3QC&hl=&source=gbs_api |
| EBook | FULL_PUBLIC_DOMAIN |