"IEPA/WPC/86-001.""January, 1986."Bibliography: p. 99-100.Mode of access: Internet
Survey made cooperatively by the Illinois Environmental Protection Agency and the Illinois Dept. of ...
On cover: Investigations of Illinois surface waters.Bibliography: p. 71-75.Mode of access: Internet
Bibliography: p. 88-90.Enumeration continues through succeeding title.Mode of access: Internet
"IEPA/WPC/84-030.""December, 1984."Bibliography: p. 136-144.Mode of access: Internet
"IEPA/WPC/82-001"."May 15, 1982".Bibliography: p. 86-89.Mode of access: Internet
"IEPA/WPC/83-003X.""December, 1983."Bibliography: p. 157-165.Mode of access: Internet
"October, 1982."Report no.: IEPA/WPC/82-011.Bibliography: p. 23-25.Mode of access: Internet
"January, 1970."Includes bibliographical references (p. 46).Mode of access: Internet
On cover: Investigation of Illinois surface waters."Staff report."Bibliography: p. 62-67.Mode of acc...
Continues the work by R. H. Harmeson and T. E. Larson published in 1969.Mode of access: Internet
"October, 1990."Cover title.Includes bibliographical references (p. 61-62).Mode of access: Internet
"The Northeastern Illinois Planning Commission's Natural Resources Dept. conducted the lake assessme...
"Lake and stream classification project."Includes bibliographical references (p. 79-80).Mode of acce...
"Printed by authority of the State of Illinois/1998/950"--T.p. verso.Includes bibliographical refere...
"IEPA/WPC/84-011." -- Cover."January 1984." -- Cover.Bibliography: leaves 31-32.Mode of access: Inte...
Survey made cooperatively by the Illinois Environmental Protection Agency and the Illinois Dept. of ...
On cover: Investigations of Illinois surface waters.Bibliography: p. 71-75.Mode of access: Internet
Bibliography: p. 88-90.Enumeration continues through succeeding title.Mode of access: Internet
"IEPA/WPC/84-030.""December, 1984."Bibliography: p. 136-144.Mode of access: Internet
"IEPA/WPC/82-001"."May 15, 1982".Bibliography: p. 86-89.Mode of access: Internet
"IEPA/WPC/83-003X.""December, 1983."Bibliography: p. 157-165.Mode of access: Internet
"October, 1982."Report no.: IEPA/WPC/82-011.Bibliography: p. 23-25.Mode of access: Internet
"January, 1970."Includes bibliographical references (p. 46).Mode of access: Internet
On cover: Investigation of Illinois surface waters."Staff report."Bibliography: p. 62-67.Mode of acc...
Continues the work by R. H. Harmeson and T. E. Larson published in 1969.Mode of access: Internet
"October, 1990."Cover title.Includes bibliographical references (p. 61-62).Mode of access: Internet
"The Northeastern Illinois Planning Commission's Natural Resources Dept. conducted the lake assessme...
"Lake and stream classification project."Includes bibliographical references (p. 79-80).Mode of acce...
"Printed by authority of the State of Illinois/1998/950"--T.p. verso.Includes bibliographical refere...
"IEPA/WPC/84-011." -- Cover."January 1984." -- Cover.Bibliography: leaves 31-32.Mode of access: Inte...
Survey made cooperatively by the Illinois Environmental Protection Agency and the Illinois Dept. of ...
On cover: Investigations of Illinois surface waters.Bibliography: p. 71-75.Mode of access: Internet
Bibliography: p. 88-90.Enumeration continues through succeeding title.Mode of access: Internet