| 其他書名 | Their Origin and Their Activity |
| 出版 | Clarendon Press, 1979 |
| 主題 | Language Arts & Disciplines / Linguistics / GeneralReference / GeneralScience / Physics / Astrophysics |
| ISBN | 01985129029780198512905 |
| URL | http://books.google.com.hk/books?id=Msp-AAAAIAAJ&hl=&source=gbs_api |