United States. General Accounting Office. Defense Trade: U.S. Contractors Employ Diverse Activities To Meet Offset Obligations, report, December 18, 1998; (https://digital.library.unt.edu/ark:/67531/metadc291382/m1/1/: accessed July 16, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .