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[51-05] Yellowstone Nature Notes. Vol. XXV No. 5. Sept.-Oct. 1951.
Ericson, Mildred J., [51-05] Yellowstone Nature Notes. Vol. XXV No. 5. Sept.-Oct. 1951. (1951). Montana History Portal, accessed 18/04/2026, https://www.mtmemory.org/nodes/view/115080





