Implications of Electronic Mail and Message Systems for the U.S. Postal Service

Chapter 3
Market Penetration Model
and Technology Assumptions

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 September 19, 2014.