Water, sediment, and nutrient budgets, and bathymetric survey of old and new Gillespie lakes, Macoupin County, Illinois, May 1996-April 1997 [microform] : (with a discussion of lake-management practices) / by Gary P. Johnson (Open-file report ; 99-69)
Water, sediment, and nutrient budgets, and bathymetric survey of old and new Gillespie lakes, Macoupin County, Illinois, May 1996-April 1997 [microform] : (with a discussion of lake-management practices) / by Gary P. Johnson