| 其他書名 | Economic Growth, Population, Labor Force and Leisure, and Transportation : Reports to the Outdoor Recreation Resources Review Commission |
| 出版 | U.S. Government Printing Office, 1962 |
| URL | http://books.google.com.hk/books?id=qhLRAAAAMAAJ&hl=&source=gbs_api |
| EBook | FULL_PUBLIC_DOMAIN |