TY  - BOOK
AU  - Thomas,Ronald R.
TI  - Understanding telecommunications
SN  - 0830632298 (pbk.)
PY  - 1989///
CY  - Blue Ridge Summit, PA : 
PB  - TAB Books, 
KW  - Telecommunication
N1  - "A Petrocelli book."; Includes index; Bibliography: p. 229-230
ER  -