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61Smokestacks and progressives : environmentalists, engineers, and air quality in America, 1881-1951 /by Stradling, DavidSubjects “...Air Pollution United States History....”
Published 1999
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64
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65
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66by Rose, Mark H., 1942-Subjects “...Express highways United States History....”
Published 2012
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67
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69by Sellars, Richard West, 1935-Subjects “...United States. National Park Service History....”
Published 1997
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70by Abraham, Tara H.Subjects “...Neurophysiologists United States Biography....”
Published 2016
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71
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72
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73
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74by Carr, Ethan, 1958-Subjects “...United States. National Park Service History....”
Published 1998
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75
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76
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77Published 1996SubjectsConference Proceeding Book
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78by Ryan, Craig, 1953-Subjects “...Balloon ascensions United States History....”
Published 1995
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79Published 2007Subjects “...Engineering design United States....”
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80Published 2011Subjects “...Environmental policy United States History Encyclopedias....”
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