| 其他書名 | A Directory of Selected Specialized Information Services in the Physical and Biological Sciences |
| 出版 | National Science Foundation, Office of Science Information Service, 1961 |
| URL | http://books.google.com.hk/books?id=nHcLAQAAIAAJ&hl=&source=gbs_api |
| EBook | FULL_PUBLIC_DOMAIN |