Microfiche. Arlington, Va. : University Publications of America. 1991. 1 microfiche : negative. (Major studies and issue briefs of the Congressional Research Service. 1991 supplement ; 91-314 GOV). Microfiche. Arlington, Va. : University Publications of America, 1991. 1 microfiche : negative. (Major studies and issue briefs of the Congressional Research Service. 1991 supplement ; 91-314-GOV).