SOI Bulletin: Spring 1992 PDF Articles: Foreign Corporations with Income Effectively Connected with a U.S. Business, 1988 PDF Foreign Recipients of U.S. Income, 1989 PDF Foreign Sales Corporation Statistics for 1987 PDF Individual Income Tax Returns, Preliminary Data, 1990 PDF Interest Charge-Domestic International Sales Corporation Statistics for 1987 PDF Nonresident Alien Estates, 1986 PDF