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41Published 1995“...U.S. Geological Survey bulletin ;...”
Government Document Book -
42by Brooks, William E.“...U.S. Geological Survey bulletin ;...”
Published 1996
Government Document Book -
43Published 1997“...U.S. Geological Survey bulletin ;...”
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44by Tuttle, M. L.“...U.S. Geological Survey bulletin ;...”
Published 2003
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45by Gray, John E., 1956-“...U.S. Geological Survey bulletin ;...”
Published 2003
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46
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47by Robinson, G. D. (Gershon Du Vall), 1918-“...U.S. Geological Survey bulletin ;...”
Published 1985
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48
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49by Armstrong, Augustus K.“...U.S. Geological Survey bulletin ;...”
Published 1987
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50
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51by John, David A.“...U.S. Geological Survey bulletin ;...”
Published 1992
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52by Brogan, George E.“...U.S. Geological Survey bulletin ;...”
Published 1991
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53
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54by Bateman, Paul C., 1910-2007, Krauskopf, Konrad B. (Konrad Bates), 1910-2003, Sheridan, Michael F.“...U.S. Geological Survey bulletin ;...”
Published 1988
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55
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56by Maldonado, Florian“...U.S. Geological Survey bulletin ;...”
Published 1988
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57by Nash, J. Thomas (John Thomas), 1941-“...U.S. Geological Survey bulletin ;...”
Published 1989
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58
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59
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60