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Druid Wilson
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Geologic names of North America introduced in 1936-1955
Druid Wilson · U.S. Government Printing Office
405 sayfa · 1957
Geology, Stratigraphic / Nomenclature / Stratigraphic Geology
Index to the geologic names of North America
Druid Wilson · U.S. Government Printing Office
622 sayfa · 1959
Geology / Geology, Stratigraphic / Nomenclature / Stratigraphic Geology