Washington State University. Center for Northwest Anthropology, Draper, J. A., & Andrefsky, W., Jr. (1991). Archaeology of the Middle Spokane River Valley: Investigations along the Spokane Centennial Trail. Center for Northwest Anthropology, Dept. of Anthropology, Washington State University.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Washington State University. Center for Northwest Anthropology, John A. Draper, و William Andrefsky, Jr. Archaeology of the Middle Spokane River Valley: Investigations Along the Spokane Centennial Trail. Pullman: Center for Northwest Anthropology, Dept. of Anthropology, Washington State University, 1991.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Washington State University. Center for Northwest Anthropology, et al. Archaeology of the Middle Spokane River Valley: Investigations Along the Spokane Centennial Trail. Center for Northwest Anthropology, Dept. of Anthropology, Washington State University, 1991.