| Type |  Book |
| ชื่อเรื่อง | A research strategy for enhancing sustainable recreation and tourism on public lands / edited by Lee K. Cerveny, Monika M. Derrien, and Anna B. Miller |
| พิมพลักษณ์ | Portland, OR : U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station, 2020 |
| หัวเรื่อง | Outdoor recreation --United States [] |
| | Public lands --Recreational use --United States [] |
| | Recreation areas --Public use --United States [] |