1. Standard Methods for the Examination of Water and Wastewater;American Public Health Association,1985
2. Accumulation of dry matter, nitrogen and phosphorus by cultivated water hyacinths;Boyd;Econ. Bot.,1976
3. Variation in the elemental content of Eichhornia crassipes;Boyd;Hydrobiologia,1971
4. Density requirements to maximize productivity and nutrient removal capability of water hyacinth;DeBusk,1987
5. Performance of a pilot-scale water hyacinth-based secondary treatment system in central Florida;DeBusk;J. Water Pollut. Control Fed.,1989