1. Cluster Analysis for Applications;Anderberg,1973
2. Hydrometric network evaluation: audit approach;Davar,1990
3. Cost-effectiveness of the stream-gaging program in Nebraska;Engel;U.S. Geol. Surv. Water-Resour. Invest. Rep.,1984
4. Cluster Analysis;Everitt,1980
5. Cost-effectiveness of the stream-gaging program in Maine;Fontaine;U.S. Geol. Surv. Water Supply Pap.,1984