Influence of natural factors on the quality of midwestern streams and rivers /

by Porter, Stephen D, Porter, Stephen D
Published 2001

Influence of natural factors on the quality of midwestern streams and rivers /

by Porter, Stephen D
Published 2001

Water-quality assessment of the Kentucky River Basin, Kentucky : distribution of metals and other trace elements in sediment and water, 1987-90 /

by Porter, Stephen D
Published 1995

Summary of biological investigations relating to surface-water quality in the Kentucky River basin, Kentucky /

by Bradfield, Arthur D., Bradfield, Arthur D., Bradfield, Arthur D., Porter, Stephen D., Porter, Stephen D., Porter, Stephen D.
Published 1990

Water-quality assessment of the Kentucky River Basin, Kentucky : nutrients, sediments, and pesticides in streams, 1987-90 /

by Haag, Kim H., Haag, Kim H., Porter, Stephen D., Porter, Stephen D.
Published 1995

Water-quality assessment of the Kentucky River Basin, Kentucky : distribution of metals and other trace elements in sediment and water, 1987-90 /

by Porter, Stephen D, Porter, Stephen D., Porter, Stephen D., Clark, J. R., Clark, J. R., White, Kevin D (Kevin Duane), 1958-, White, Kevin D (Kevin Duane), 1958-
Published 1995

Nutrient loading and selected water-quality and biological characteristics of Dickinson Bayou near Houston, Texas, 1995-97 /

by East, Jeffery W., East, Jeffery W., Paul, Edna M., Paul, Edna M., Porter, Stephen D., Porter, Stephen D.
Published 1998

Selected trace metals in water, sediment, plants, and fish in Rapid Creek, Rapid City, South Dakota, 1993-94 /

by Williamson, Joyce E., Williamson, Joyce E., Goldstein, Robert M., Goldstein, Robert M., Porter, Stephen D., Porter, Stephen D.
Published 1996

Chemical and biological indicators of nutrient enrichment in the Yellowstone River Basin, Montana and Wyoming, August 2000 : study design and preliminary results /

by Peterson, David A (David Allen), 1955-, Peterson, David A (David Allen), 1955-, Peterson, David A (David Allen), 1955-, Peterson, David A (David Allen), 1955-, Kinsey, S. M., Porter, Stephen D., Porter, Stephen D.
Published 2001

Water quality in the Yellowstone River Basin, Wyoming, Montana, and North Dakota, 1999-2001 /

by Bartos, Timothy T., Clark, Melanie L., Miller, Kirk A., Peterson, David A (David Allen), 1955-, Porter, Stephen D., Quinn, Thomas L.
Published 2004

Water quality in the Acadian-Pontchartrain Drainages, Louisiana and Mississippi, 1999-2001 /

by Demcheck, Dennis K., Fendick, Robert B., Mize, Scott V., Porter, Stephen D., Skrobialowski, Stanley C., Swarzenski, Christopher M., 1958-, Tollett, Roland W.
Published 2004

Water quality in the eastern Iowa basins, Iowa and Minnesota, 1996-98 /

by Barnes, Kimberlee K., Becher, Kent D., Kalkhoff, Stephen J., Porter, Stephen D., Sadorf, Eric M., Savoca, Mark E., Schnoebelen, Douglas J., Sullivan, Daniel, 1948-
Published 2000

Summary of biological investigations relating to surface-water quality in the Kentucky River basin, Kentucky /

by Bradfield, Arthur D
Published 1990

Summary of biological investigations relating to surface-water quality in the Kentucky River basin, Kentucky /

by Bradfield, Arthur D
Published 1990

Methods for collecting algal samples as part of the National Water-Quality Assessment Program /

Published 1993

Water-quality assessment of the Kentucky River Basin, Kentucky : nutrients, sediments, and pesticides in streams, 1987-90 /

by Haag, Kim H
Published 1995

Methods for collecting algal samples as part of the National Water-Quality Assessment Program /

Published 1993

Methods for collecting algal samples as part of the National Water-Quality Assessment Program

Published 1993

Water-quality assessment of the Kentucky River Basin, Kentucky : nutrients, sediments, and pesticides in streams, 1987-90 /

by Haag, Kim H
Published 1995

Chemical and biological indicators of nutrient enrichment in the Yellowstone River Basin, Montana and Wyoming, August 2000 : study design and preliminary results /

by Peterson, David A (David Allen), 1955-
Published 2001