Franklin, J. F., & Dyrness, C. T. (1973). Natural vegetation of Oregon and Washington. Pacific Northwest Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture [for sale by the Supt. of Docs., U.S. Govt. Print. Off., Washington].
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Franklin, Jerry F., và C. T. Dyrness. Natural Vegetation of Oregon and Washington. Portland, Or.: Pacific Northwest Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture [for sale by the Supt. of Docs., U.S. Govt. Print. Off., Washington], 1973.
Trích dẫn kiểu MLA (xuất bản lần thứ 8)Franklin, Jerry F., và C. T. Dyrness. Natural Vegetation of Oregon and Washington. Pacific Northwest Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture [for sale by the Supt. of Docs., U.S. Govt. Print. Off., Washington], 1973.