TY - RPRT TI - Cluster analysis of water-quality data for Lake Sakakawea, Audubon Lake, and McClusky Canal, central North Dakota, 1990-2003 AU - Karen R. Ryberg PY - 2006 DO - 10.3133/sir20065202 UR - https://pubs.usgs.gov/publication/sir20065202 ID - sir20065202 ER -