1948
Bibliografía (8 obras)
Encyclopedia of communication and information
2002
Encyclopedia of Communication and Information
2001
Tendencies and Tensions of the Information Age
1995
Tendencies and tensions of the information age
1994
Between communication and information
1993
Competing visions, complex realities
1987
Telecommunication Policy Yearbook, 1981
1982
Telecommunications Policy Handbook
