Beskrivelse
Emne beskrivelse:"Reissue edition"--Verso t.p.
Reprint. Originally published: Washington, D.C. : Congress of the U.S., Office of Technology Assessment, 1986.
Fysisk beskrivelse:xi, 198 p. : ill. ; 29 cm.
Bibliografi:Includes bibliographical references and index.
ISBN:0894642197