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[49-03] Yellowstone Nature Notes. Vol. XXIII No. 3. May - June 1949.
Jacobson, Arthur, [49-03] Yellowstone Nature Notes. Vol. XXIII No. 3. May - June 1949. (1949). Montana History Portal, accessed 06/03/2026, https://www.mtmemory.org/nodes/view/115065





