1. Um método rápido y simple para evaluar la calidad de las águas corrientes basado en el de Hellawell (1978);Alba-Tercedor;Limnetica,1988
2. Standard Methods for Examination of Water and Wastewater;A.P.H.A.,1980
3. The performance of a new biological water quality score system based on macroinvertebrates over a wide range of unpolluted running-waters sites;Armitage;Water Res.,1983
4. A comparison of sampling techniques and summary indices for assessment of water quality in the Yamaska River, Quebec, based on benthic macroinvertebrates;Barton;Environ. Pollut.,1992
5. Application of Numerical Classification in Ecological Investigation of Water Pollution;Boesch,1977