Pacific Northwest Research Station (Portland, Or.), & Interior Columbia Basin Ecosystem Management Project (U.S.). (1996). Status of the interior Columbia basin summary of scientific findings. U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Pacific Northwest Research Station (Portland, Or.), و Interior Columbia Basin Ecosystem Management Project (U.S.). Status of the Interior Columbia Basin Summary of Scientific Findings. Portland, Or.: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 1996.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Pacific Northwest Research Station (Portland, Or.), و Interior Columbia Basin Ecosystem Management Project (U.S.). Status of the Interior Columbia Basin Summary of Scientific Findings. U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 1996.