Smith, J. R. G.
Elementary telecommunication practice / J. R. C. Smith. - 3rd ed. - London, : Hodder and Stoughton, 1967. - xii, 329 p. : ill.
0340046198
91034165
Telecommunication.
Elementary telecommunication practice / J. R. C. Smith. - 3rd ed. - London, : Hodder and Stoughton, 1967. - xii, 329 p. : ill.
0340046198
91034165
Telecommunication.