Cover title. "Updated February 27, 1990." "Major planning issue."
Bibliography Note
Includes bibliographical references (page 15).
Reproduction Note
Microfilm. Arlington, Va. : University Publications of America, 1991. on 1 microfilm reel ; 35 mm. Low reduction. (Major studies and issue briefs of the Congressional Research Service. 1990 supplement ; reel 11, fr. 0012).