by Michael L. Hargrave and Brian M. Butler ; Brian M. Butler and David P. Braun, principal investigators ; testing conducted under the auspices of the United States Department of Transportation, Federal Highway Administration [and] the State of Illinois, Department of Transportation
Center for Archaeological Investigations, Southern Illinois University at Carbondale
1981
Research paper / Southern Illinois University at Carbondale, Center for Archaeological Investigations
no. 30
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