Baran, Paul.
The Future of the Telephone Industry 1970-1985 : a Special Industry Report R-20 / Baran Paul, Lipinski Andrew J.. - 2 edition. - Menlo Park, California : Institute for the Future, 1971. - VII, 172 s.; 29 cm. - Biblioteka Radiotechnologa . - Biblioteka Radiotechnologa .
The Future of the Telephone Industry 1970-1985 : a Special Industry Report R-20 / Baran Paul, Lipinski Andrew J.. - 2 edition. - Menlo Park, California : Institute for the Future, 1971. - VII, 172 s.; 29 cm. - Biblioteka Radiotechnologa . - Biblioteka Radiotechnologa .