| 其他書名 | Report of the Conference on Highway Engineering and Highway Transport Education, Held in Washington, May 14 and 15, 1920, Under the Direction of the Commissioner of Education, with Reports of the Preliminary Meetings |
| 出版 | U.S. Government Printing Office, 1920 |
| URL | http://books.google.com.hk/books?id=2BE_AQAAMAAJ&hl=&source=gbs_api |
| EBook | FULL_PUBLIC_DOMAIN |