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1Published 1976“...Special report (University of Illinois at Urbana-Champaign. Water Resources Center) ;...”
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2Published 1976Conference Proceeding Book
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7Published 1974Conference Proceeding Book
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8
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9Published 1980Conference Proceeding Book
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10
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11Published 1960Conference Proceeding Book
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13
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14
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15Published 1986Subjects: “...University of Illinois at Urbana-Champaign. College of Applied Life Studies History Congresses....”
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17
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18Published 1988Conference Proceeding Book
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19Published 1967Conference Proceeding Book
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20Published 1974Conference Proceeding Microform Book