Goetcheus, V. G., & Birks, H. H. (2001). Full-glacial upland tundra vegetation preserved under tephra in the Beringia National Park, Seward Peninsula, Alaska. Quaternary science reviews, 20(1), 135-147. https://doi.org/10.1016/S0277-3791(00)00127-X
Chicago Style (17th ed.) CitationGoetcheus, Victoria G., and Hilary H. Birks. "Full-glacial Upland Tundra Vegetation Preserved Under Tephra in the Beringia National Park, Seward Peninsula, Alaska." Quaternary Science Reviews 20, no. 1 (2001): 135-147. https://doi.org/10.1016/S0277-3791(00)00127-X.
MLA (9th ed.) CitationGoetcheus, Victoria G., and Hilary H. Birks. "Full-glacial Upland Tundra Vegetation Preserved Under Tephra in the Beringia National Park, Seward Peninsula, Alaska." Quaternary Science Reviews, vol. 20, no. 1, 2001, pp. 135-147, https://doi.org/10.1016/S0277-3791(00)00127-X.