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Sharp RP.  1960.  Pleistocene Glaciation in the Trinity Alps of Northern California. American Journal of Science. 258:305-340.

Sharp RP, Allen CR, Meier MF.  1959.  Pleistocene Glaciers on Southern California Mountains. American Journal of Science. 257:81-94.

Sharp RP, Epstein S, Vidziunas I.  1960.  Oxygen-Isotope Ratios in the Blue Glacier, Olympic Mountains, Washington, U. S. A.. Journal of Geophysical Research. 65:4043-4060.