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41by Wells, J. V. B.“...United States Department of the Interior, Geological Survey,...”
Published 1958
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42by Love, S. K. (Samuel Kenneth), 1903-1995“...United States Department of the Interior, Geological Survey,...”
Published 1960
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43“...United States Department of the Interior, Geological Survey,...”
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44by Wells, J. V. B.“...United States Department of the Interior, Geological Survey,...”
Published 1960
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45by Love, S. K. (Samuel Kenneth), 1903-1995“...United States Department of the Interior, Geological Survey,...”
Published 1960
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46by LaMoreaux, Philip E., 1920-2008“...United States Department of the Interior, Geological Survey,...”
Published 1960
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47by Love, S. K. (Samuel Kenneth), 1903-1995“...United States Department of the Interior, Geological Survey,...”
Published 1962
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48Published 1970“...United States Department of the Interior, Geological Survey,...”
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49by Grover, Nathan Clifford, 1868-1956“...Department of the Interior, United States Geological Survey,...”
Published 1925
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50by Grover, Nathan Clifford, 1868-1956“...United States Department of the Interior, Geological Survey,...”
Published 1931
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51by Grover, Nathan Clifford, 1868-1956“...United States Department of the Interior, Geological Survey,...”
Published 1938
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52by Grover, Nathan Clifford, 1868-1956“...United States Department of the Interior, Geological Survey,...”
Published 1940
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53by Grover, Nathan Clifford, 1868-1956“...United States Department of the Interior, Geological Survey,...”
Published 1940
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54by Paulsen, Carl G.“...United States Department of the Interior, Geological Survey,...”
Published 1941
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55by Parker, Glenn L. (Glenn Lane), 1884-“...United States Department of the Interior, Geological Survey,...”
Published 1943
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56by Parker, Glenn L. (Glenn Lane), 1884-“...United States Department of the Interior, Geological Survey,...”
Published 1943
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57by Parker, Glenn L. (Glenn Lane), 1884-“...United States Department of the Interior, Geological Survey,...”
Published 1944
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58by Parker, Glenn L. (Glenn Lane), 1884-“...United States Department of the Interior, Geological Survey,...”
Published 1944
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59by Wenzel, L. K. (Leland Keith), 1908-1992“...United States Department of the Interior, Geological Survey,...”
Published 1946
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60by Paulsen, Carl G.“...United States Department of the Interior, Geological Survey,...”
Published 1951
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