1. APHA, AWWA & WPCF (American Public Health Association, American Water Works Association & Water Pollution Control Federation), 1980. Bioassay methods for aquatic organisms. In Standard Methods for the Examination of Water and Wastewater, 15th Edition. Greenberg, A. E., Connors, J. J. & Jenkins, D. (eds.), APHA, Washington: 615–743.
2. Armstrong, F. A. J. & D. W. Schindler, 1971. Preliminary chemical characterization of waters in the experimental lakes area, northwestern Ontario. J. Fish. Res. Bd Can. 28: 171–187.
3. Berland, B. R., D. J. Bonin & S. Y. Maestrini, 1974. Mise en évidence de facteurs réglant la productivité du phytoplancton des eaux de surface dans la partie nord occidentale de la mer Méditerranée au moyen de tests biologiques. Ann. Inst. Oceanogr. Paris 50: 5–25.
4. Campbell, M., 1978. Requiem for a river? Pollution of the Moisie and Pekans rivers. Atlant. Salmon J. 27: 17–20.
5. Rapport no 76;P. G. Campbell,1976