Kegley, S., Schwandt, J. W., & Gibson, K. E. (2004). Forest health assessment of whitebark pine in selected stands in the Selkirk Mountains of northern Idaho, 2001. U.S. Dept. of Agriculture, Forest Service, Northern Region, Forest Health Protection.
Chicago Style (17th ed.) CitationKegley, Sandy, John W. Schwandt, and Kenneth E. Gibson. Forest Health Assessment of Whitebark Pine in Selected Stands in the Selkirk Mountains of Northern Idaho, 2001. Missoula, MT: U.S. Dept. of Agriculture, Forest Service, Northern Region, Forest Health Protection, 2004.
MLA (9th ed.) CitationKegley, Sandy, et al. Forest Health Assessment of Whitebark Pine in Selected Stands in the Selkirk Mountains of Northern Idaho, 2001. U.S. Dept. of Agriculture, Forest Service, Northern Region, Forest Health Protection, 2004.