| 其他書名 | A study of the calcination of polyhalite in a 6 by 132 inch rotary kiln. Density measurements as control tests for efficiency of calcination. VI. |
| 出版 | U.S. Department of Commerce, Bureau of Mines, 1932 |
| URL | http://books.google.com.hk/books?id=ZHjlzgEACAAJ&hl=&source=gbs_api |