A história da telefonia no Paraná
By: Lando Rogério Kroetz.
Publisher: Telecomunicações do Paraná
Published: 1982
Place of publication: Curitiba
Language: por
Number of pages: 133
Subjects: Companhia de Telecomunicações do Paraná -- History.; Telephone -- Brazil -- Paraná (State) -- History.
Notes: Bibliography: p. 127-133.