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1Published 1978Subjects: “...Transportation United States....”
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2Published 1980Subjects: “...Transportation United States....”
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3Published 1980Subjects: “...Transportation Technological innovations....”
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4Published 1980Subjects: “...Urban transportation....”
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5Published 1981Subjects: “...Transportation United States Energy conservation....”
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6Published 1981Subjects: “...Urban transportation United States....”
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7Published 1981Subjects: “...Urban transportation United States....”
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8Published 1977Subjects: “...Transportation, Automotive United States....”
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9Published 1977Subjects: “...Transportation, Automotive United States....”
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10Published 1977Subjects: “...Transportation, Automotive United States....”
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11Published 1981Subjects: “...Information storage and retrieval systems Transportation....”
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12Published 1980Subjects: “...Hazardous substances United States Transportation....”
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13Published 1981Subjects: “...Transportation Planning United States....”
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14Published 1980Subjects: “...Transportation United States Energy conservation....”
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