Centre Saint-Laurent -Montreal, Que, CA

CA, Q.(State). M., CA, C.Environmen, Centre Saint-Laurent -Montreal, Que, CA, Communaute urbaine de Quebec -Quebec, Que, CA, Societe quebecoise d'assainissement des eaux -Montreal, Que, CA & Association quebecoise des techniques de l'eau -Montreal, Que, CA, 1991. 14th International symposium on wastewater treatment : November 12 and 13, 1991. 3rd Workshop on drinking water : November 14, 1991 : Montreal, Quebec : proceedings = 14e Symposium international sur le traitement des eaux usees : les 12 et 13 novembre 199, Ottawa, Ont, Canada: Canada, Ministry of Supply and Services.