1983 Fall SOI Bulletin PDF Articles: Average and Marginal Tax Rates, 1981 PDF Crude Oil Windfall Profit Tax, 1982 PDF Domestic International Sales Corporation Returns, 1980 PDF Projections of Tax Return Filings, 1984-1991 PDF Safe Harbor Leasing, 1981 and 1982 PDF Superfund for Environmental Taxes, 1981 and 1982 PDF