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- Stratigraphy and chronology of late interglacial and early Vashon glacial time in the Seattle area, Washington, by Donal R. Mullineaus, Howard H. Waldron, and Meyer Rubin
- Definition of Wisconsinan Stage, the Wisconsinan Stage and its Altonian, Farmdalian, Woodfordian, Twocreekan, and Valderan Substages are described as time-stratigraphic units of the Pleistocene of Illinois and Wisconsin, by John C. Frye, H.B. Willman, Meyer Rubin, and Robert F. Black
- Stratigraphy and chronology of late interglacial and early Vashon glacial time in the Seattle area, Washington, by Donal R. Mullineaus, Howard H. Waldron, and Meyer Rubin
- Definition of Wisconsinan Stage, the Wisconsinan Stage and its Altonian, Farmdalian, Woodfordian, Twocreekan, and Valderan Substages are described as time-stratigraphic units of the Pleistocene of Illinois and Wisconsin, by John C. Frye, H.B. Willman, Meyer Rubin, and Robert F. Black