Bauer, Clyde Max. Yellowstone - its underworld : geology and historical anecdotes of our oldest national park / Clyde Max Baue. - Property : Austria, c 1948. - 122 p. : ill. ; 21 cm. includes index. Bibliography : p. 117-18 341 341 Subjects--Topical Terms: United States--Yellowstone National Park. Dewey Class. No.: 917.87 / B325y