Franklin, J. F., & Dyrness, C. T. (1973). Natural vegetation of Oregon & Washington. Pacific Northwest Forest and Range Experiment Station.
Chicago-viite (17. p.)Franklin, Jerry F., ja C. T. Dyrness. Natural Vegetation of Oregon & Washington. Portland, Or.: Pacific Northwest Forest and Range Experiment Station, 1973.
MLA-viite (8. p.)Franklin, Jerry F., ja C. T. Dyrness. Natural Vegetation of Oregon & Washington. Pacific Northwest Forest and Range Experiment Station, 1973.
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