France (1) Ecology (1) Doors (1) Costs (1) Assaying (1) Communication (1) Platforms (1) Platforms (1) Volatile organic compounds (1) Plumbing fixtures (1) Sulfur dioxide (1) State, The (1) Profit (1) Pollution (1) Plumbing--Equipment and supplies (1) Oxides (1) Nitrogen (1) Licenses (1) Goal (Psychology) (1) Economics, Mathematical (1) Economics (1) Econometrics (1) Ceilings (1) Cabinet system (1) Ammonia (1) Air--Pollution (1) Air (1) Valuation (1) Measurement (1) Analysis (1)