| 其他書名 | An Urgent Issue; a Volume of Testimony Urging Worldwide Adoption of the Metric Units of Weights and Measures--meter--liter--gram |
| 出版 | World metric standardization council, 1922 |
| URL | http://books.google.com.hk/books?id=n8ALAAAAYAAJ&hl=&source=gbs_api |