1. American Public Health Association (1980) Standard methods for examination of water and wastewater. 15th Ed. 1134 p
2. Bernhardt ES, Likens GE, Hall RO Jr, Buso DC, Fisher SG, Burton TM, Meyer JL, Mcdowell WH, Mayer MS, Bowden WB, Findlay SEG, Macneale KH, Stelzer RS, Lowe WH (2005) Can’t see the Forest for the stream? In-stream processing and terrestrial nitrogen exports. BioScience 55:219–230
3. Brandes, R., R. Huston, P. Jensen, M. Kelly, F. Manhart, P. Montagna, E. Oborny, G. Ward and J. Wiersema. 2009. Working draft: nutrient and water quality overlay for hydrology-based Instream flow recommendations. Senate bill 3 science advisory Committee for Environmental Flows. Report # SAC-2009-06 https://www.tceq.texas.gov/assets/public/permitting/watersupply/water_rights/eflows/wqoverlay_200911039.pdf accessed 25 June 2020
4. Carlson R.E. and J. Simpson. 1996. A Coordinator's guide to volunteer Lake monitoring methods. North American Lake Management Society. 96 p
5. Carpenter SR, Caraco NF, Correll DL, Howarth RW, SharpleSy AN, Smith VH (1998) Nonpoint pollution of surface waters with phosphorus and nitrogen. Ecol Appl 8:559–568