National Symposium on Social Science in Resource Management (1st : 1986 : Oregon State University)
[Corvallis, Or. : National Park Service, Cooperative Park Studies Unit, Dept. Resource Recreation, Oregon State University, 1986]
1986
National Symposium on Social Science in Resource Management (1st : 1986 : Oregon State University)
[Corvallis, Or. : National Park Service, Cooperative Park Studies Unit, Dept. Resource Recreation, Oregon State University, 1986]
1986