Arthur Coe Spencer

Arthur Coe Spencer · A.C. Spencer

70 sayfa · 1896

Geology

Arthur Coe Spencer · Creative Media Partners, LLC

Sayfa sayısı yok · 2022

Kategori yok

Arthur Coe Spencer · U.S. Govt. Print. Off.

78 sayfa · 1935

Geology

Arthur Coe Spencer · Govt. Print. Off.

189 sayfa · 1917

Ore deposits / Geology

Arthur Coe Spencer · Yayınevi bilinmiyor

Sayfa sayısı yok · 1895

Kategori yok

Arthur Coe Spencer · Govt. Print. Off.

107 sayfa · 1904

Copper ores

Arthur Coe Spencer, Charles Will Wright · Creative Media Partners, LLC

Sayfa sayısı yok · 2022

Kategori yok

Whitman Cross, Arthur Coe Spencer, Chester Wells Purington, Geological Survey (U.S.) · U.S. Geological Survey

14 sayfa · 1899

Geology / Maps

Arthur Coe Spencer, Henry Barnard Kümmel, John Eliot Wolff, Rollin D. Salisbury, Charles Palache, Geological Survey (U.S.) · U.S. Geological Survey

27 sayfa · 1908

Geology / Maps