00403nam a22001457a 4500 9780697201386 Nust 621.382 GRO'T Lynne Schafer Gross 127303 Telecommunication An introduction to electronic media 5th Edition USA: W. C brown communication, inc, 1992. Telecommunication ddc BK 612466 612466 0 0 ddc 0 0 CEME CEME GEN 2025-01-01 0 621.382 GRO'T CEME- 31747 2025-01-01 2025-01-01 BK