Fath, Arthur Earl (1887-1976) Stany Zjednoczone. Geological Survey
Fath, Arthur Earl (1887-1976) Stany Zjednoczone. Geological Survey
Fath, Arthur Earl (1887-1976) Stany Zjednoczone. Geological Survey
Fath, Arthur Earl (1887-1976) Moulton, Gail Francis (1898-1974) Stany Zjednoczone. Geological Survey