Pelletier, G. J. (1994). Cadmium, copper, mercury, lead, and zinc in the Spokane River: Comparisons with water quality standards and recommendations for total maximum daily loads. Washington State Dept. of Ecology, Environmental Investigations and Laboratory Services Program, Watershed Assessments Section.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Pelletier, G. J. Cadmium, Copper, Mercury, Lead, and Zinc in the Spokane River: Comparisons with Water Quality Standards and Recommendations for Total Maximum Daily Loads. Olympia, Wash.: Washington State Dept. of Ecology, Environmental Investigations and Laboratory Services Program, Watershed Assessments Section, 1994.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Pelletier, G. J. Cadmium, Copper, Mercury, Lead, and Zinc in the Spokane River: Comparisons with Water Quality Standards and Recommendations for Total Maximum Daily Loads. Washington State Dept. of Ecology, Environmental Investigations and Laboratory Services Program, Watershed Assessments Section, 1994.