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.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWashington State University. Center for Northwest Anthropology, John A. Draper, और 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.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWashington 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.