Yazar
walden p pratt
11 cilt bulundu.
Walden P. Pratt · U.S. Dept. of the Interior, Geological Survey
Sayfa sayısı yok · 1981
Mines and mineral resources
Walden P. Pratt · For sale by U.S. Geological Survey, Information Services
19 sayfa · 1995
Mines and mineral resources
Walden P. Pratt · For sale by U.S. Geological Survey, Information Services
14 sayfa · 1995
Carbonate Rocks / Geology, Stratigraphic / Lead ores / Rocks, Carbonate / Stratigraphic Geology
Walden P. Pratt · U.S. Govt. Print. Off.
91 sayfa · 1967
Facies (Geology) / Formations (Geology) / Geology / Geology, Stratigraphic / Mines and mineral resources
Walden P. Pratt · Branch of Distribution, U.S. Geological Survey
Sayfa sayısı yok · 1983
Mines and mineral resources
Walden P. Pratt, Martin B. Goldhaber · U.S. G.P.O.
42 sayfa · 1990
Mines and mineral resources / Congresses / Geology
Donald Albert Brobst, Walden P. Pratt · U. S. Govt. Print. Office
722 sayfa · 1973
Mines and mineral resources
James A. Martin, Walden P. Pratt · U.S. Geological Survey, Branch of Central Technical Reports
115 sayfa · 1991
Mines and mineral resources / Geology