frank c calkins

William H. Emmons, Frank C. Calkins · Creative Media Partners, LLC

302 sayfa · 2018

Kategori yok

Frank C. Calkins · The University press

172 sayfa · 1902

Petrology / Geology

Frank C. Calkins · U.S. Department of the Interior, Geological Survey

35 sayfa · 1944

Geology

Frank C. Calkins · Govt. Print. Off.

112 sayfa · 1909

Geology

Frank C. Calkins · U.S. Govt. Print. Off.

152 sayfa · 1943

Ore deposits / Geology

Frank C. Calkins · University of Nevada

26 sayfa · 1938

Gold mines and mining

Frank C. Calkins · Govt. print. off.

96 sayfa · 1905

Water-supply / Geology

George Otis Smith, Frank C. Calkins, Geological Survey (U.S.) · U.S. Geological Survey

14 sayfa · 1906

Geology / Maps