| 其他書名 | Proceedings of the Symposium at the Opening of the International Geophysical Year : Conducted by the United States National Committee for the International Geophysical Year, National Academy of Sciences, Washington, D.C., June 28-29, 1957 |
| 出版 | American Geophysical Union of the National Academy of Sciences, National Research Council, 1958 |
| URL | http://books.google.com.hk/books?id=khWJoAEACAAJ&hl=&source=gbs_api |