| 其他書名 | History and Current Status of Regulations Regarding Size and Weight, Taxes and Other Selected Phases that Affect Trucking |
| 出版 | United States Department of Agriculture, Bureau of Agricultural Economics, 1950 |
| URL | http://books.google.com.hk/books?id=Y-w9AAAAYAAJ&hl=&source=gbs_api |
| EBook | FULL_PUBLIC_DOMAIN |