Symposium on Waste Managemaent Symposium on pH Measurement Hazardous waste management Symposium on steam quality Handbook of solid waste management Symposium on Water Management in Rice Field Symposium on Sweeteners Symposium on Waste Managemaent(1982: Tucson, Ariz.) Symposium on Waste Managemaent(1984: Tucson, Arizona) A symposium on light and life