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1Published 1994Government Document Conference Proceeding Book
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2
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3Published 1965“...Engineering Extension series (Virginia Polytechnic Institute. Engineering Extension Division...”
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4Published 1984Government Document Book
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5Published 1988Microform Book
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6Published 1982Government Document Microform Book
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7
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8
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9
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10
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11
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12Published 1990Government Document Microform Book
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13
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14
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15
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16
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17Published 1986Government Document Book
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18Published 1988Government Document Book
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19Published 1989Government Document Book
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20Published 1989Government Document Book