Author search: "Johnson, Gary P. 1969-"
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Water, Sediment, and Nutrient Budgets, and Bathymetric Survey of Old and New Gillespie Lakes, Macoupin County, Illinois, May 1996-April 1997Water, 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 Johnson, Gary P.Physical and Chemical Data on Sediments Deposited in the Missouri and the Mississippi River Flood Plains During the July Through August 1993 FloodPhysical and Chemical Data on Sediments Deposited in the Missouri and the Mississippi River Flood Plains During the July Through August 1993 Flood, Book
by Schalk, Gregg K.