Library of Congress Catalog Card Number 82 600599
For sale by the Superintendent of Documents,
U.S. Government Printing Office, Washington, D.C. 20402
United States. Congress. Office of Technology Assessment. Implications of Electronic Mail and Message Systems for the U.S. Postal Service. UNT Digital Library. http://digital.library.unt.edu/ark:/67531/metadc39480/. Accessed December 20, 2013.