1. Glacial Stratigraphy and Landscape Evolution of the North-Central Puget Lowland, Washington;Haase;Unpublished M.S. thesis,1987
2. The orbital theory of Pleistocene climate: Support from a revised chronology of the marine δ18O record;Imbrie,1984
3. Late Pleistocene mountain glaciation in western United States;Porter;Late Quaternary Environments of the United States,1983
4. The Scandinavian Ice Sheet through the last interglacial/glacial cycle;Mangerud