| Type |  Book |
| ชื่อเรื่อง | Constancy and cover of plants in the Petersburg and Wrangell Districts, Tongass National Forest and associated private and other public lands, southeast Alaska / Bert R. Mead |
| ผู้แต่ง | Mead, Bert R |
| พิมพลักษณ์ | Portland, Or. : U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 2002 |
| รูปเล่ม | 112 p. : ill., map |
| หัวเรื่อง | Plant ecology --Alaska --Alaska panhandle [] |
| | Vegetation classification --Alaska --Alaska panhandle [] |