"Prepared for the U. S. Department of Agricluture, Soil Conservation Service."Chiefly tables.Bibliography: leaf 13.Mode of access: Internet
"Prepared for the Illinois Environmental Protection Agency."Bibliography: leaves 32-33.Mode of acces...
Survey made cooperatively by the Illinois Environmental Protection Agency and the Illinois Dept. of ...
At head of cover title: Illinois Environmental Protection Agency, Bureau of Land."August 1997.""Jan-...
"Prepared for the U.S. Department of Agriculture Soil Conservation Service."Mode of access: Internet
Prepared in cooperation with the Illinois Agricultural Experiment Station.On spine: Soil survey of D...
Cover title.Prepared by U.S. Soil Conservation Service in cooperation with Illinois Agricultural Exp...
Chiefly tables.Bibliography: v. 1, p. 3; v. 2, p. 3.v. 1. Illinois except Illinois River basin.--v. ...
"Prepared for the Illinois Environmental Protection Agency."Chiefly tables.Bibliography: leaves 51-5...
Includes statistical tables."This plan was prepared under the authority of the Watershed Protection ...
"A product of the Critical Trends Assessment Program (CTAP) and the Ecosystems Program of the Illino...
"Prepared for the Illinois Environmental Protection Agency."Chiefly tables.Bibliography: leaves 39-4...
Shipping list no.: 96-0258-P.Cover title.Includes bibliographical references (p. 111) and index to m...
Based upon a report by the Illinois State Water Survey.Bibliography: p. 15.Mode of access: Internet
"October, 1982."Report no.: IEPA/WPC/82-011.Bibliography: p. 23-25.Mode of access: Internet
Cover title: Surface drainage program, background survey."April 1973."Includes bibliographical refer...
"Prepared for the Illinois Environmental Protection Agency."Bibliography: leaves 32-33.Mode of acces...
Survey made cooperatively by the Illinois Environmental Protection Agency and the Illinois Dept. of ...
At head of cover title: Illinois Environmental Protection Agency, Bureau of Land."August 1997.""Jan-...
"Prepared for the U.S. Department of Agriculture Soil Conservation Service."Mode of access: Internet
Prepared in cooperation with the Illinois Agricultural Experiment Station.On spine: Soil survey of D...
Cover title.Prepared by U.S. Soil Conservation Service in cooperation with Illinois Agricultural Exp...
Chiefly tables.Bibliography: v. 1, p. 3; v. 2, p. 3.v. 1. Illinois except Illinois River basin.--v. ...
"Prepared for the Illinois Environmental Protection Agency."Chiefly tables.Bibliography: leaves 51-5...
Includes statistical tables."This plan was prepared under the authority of the Watershed Protection ...
"A product of the Critical Trends Assessment Program (CTAP) and the Ecosystems Program of the Illino...
"Prepared for the Illinois Environmental Protection Agency."Chiefly tables.Bibliography: leaves 39-4...
Shipping list no.: 96-0258-P.Cover title.Includes bibliographical references (p. 111) and index to m...
Based upon a report by the Illinois State Water Survey.Bibliography: p. 15.Mode of access: Internet
"October, 1982."Report no.: IEPA/WPC/82-011.Bibliography: p. 23-25.Mode of access: Internet
Cover title: Surface drainage program, background survey."April 1973."Includes bibliographical refer...
"Prepared for the Illinois Environmental Protection Agency."Bibliography: leaves 32-33.Mode of acces...
Survey made cooperatively by the Illinois Environmental Protection Agency and the Illinois Dept. of ...
At head of cover title: Illinois Environmental Protection Agency, Bureau of Land."August 1997.""Jan-...