Telephones: their construction, installation, wiring, operation, and maintenance : A practical reference book and guide for electricians, wiremen, engineers, contractors, architects, and others interested in standard telephone practice / W. H. Radcliffe, H. C. Cushing
Principles of radio communication / John H. Morecroft, A. Pinto, W. A. Curry
As telecomunicações na Europa : livre escolha para o utilizador no mercado europeu de 1992. O desafio à Comunidade Europeia / Herbert Ungerer; colab. Nicholas Costello; pref. J. Delors e K. H. Narjes; introd. M. Carpentier
Telephone lines and methods of constructing them overhead and underground / Walter C. Owen
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