| 其他書名 | International Astronomical Union, Colloquium Number 54, Held at the Institute for Advanced Study, Princeton, N.J., August 8-11, 1979 |
| 出版 | National Aeronautics and Space Administration, George C. Marshall Space Flight Center, 1979 |
| URL | http://books.google.com.hk/books?id=hmu-0qo_QHYC&hl=&source=gbs_api |
| EBook | FULL_PUBLIC_DOMAIN |