SERCOMTEL
Subtitle: marca de pioneirismo
By: Mário Jorge de Oliveira Tavares.
Edition: 1a ed.
Publisher: SERCOMTEL
Published: 2003
Place of publication: Londrina, PR
Language: por
Number of pages: 136
Subjects: SERCOMTEL (Firm) -- History; Telecommunication -- Brazil -- Londrina -- History; Telephone companies -- Brazil -- Londrina -- History
Notes: "35 anos SERCOMTEL, 1968-2003"--Cover p. 4.

Chronology: p. 119-120.

Includes bibliographical references (p. 134-135).