1. Aadler, R. W. (1995). Filling the gaps in water quality standards: Legal perspectives on biocriteria. In W. S. Davis, & T. P. Simon (Eds.), Biological assessment and criteria: Tools for water resource planning and decision making. Boca Raton, LA: Lewis.
2. Allan, J. D. (1975). The distributional ecology and diversity of benthic insects in Cement Creek, Colorado. Ecology, 56, 1040–1053. doi: 10.2307/1936145 .
3. Allan, J. D. (1995). Stream ecology: Structure and function of running waters. New York, NY: Chapman & Hall.
4. Anderson, J., Baratono, N., Streitz, A., Magner, J. A., & Verry, E. S. (2006). Effect of historical logging on geomorphology, hydrology, and water quality in the Little Fork River Watershed. St. Paul, MN: Environmental Outcomes and Regional Environmental Management Divisions, Minnesota Pollution Control Agency.
5. Barbour, M. T., Gerritsen, J., Synder, B. D., & Stribling, J. B. (1999). Rapid bioassessment protocols for use in wadeable streams and rivers: Periphyton, benthic macroinvertebrates and fish. EPA-841-B-99-002 (2nd edn.). Washington, DC: Office of Water, US Environmental Protection Agency.