Handbook of line communication:  a comprehensive book dealing with the theoretical and practical aspects of the transmission of intelligence over lines/ 
 - 4 ed. 
 - Delhi :  Standard publisher distr.  1978. 
 - ", 905p.;  22 cm." 
 - the royal signal .
hard cover
telecommunication--data transmission systems
TK5105 / .B82 1978
                        hard cover
telecommunication--data transmission systems
TK5105 / .B82 1978