TY  - BOOK
AU  - Salm, Walter G.
TI  - ABC's of modern radio
T2  - A Howard W. Sams photofact publication
AV  - TK6550 .S14
U1  - 621.384 
PY  - 1963///, 1966
CY  - Indianapolis
PB  - H. W. Sams
KW  - Radio
N1  - "Cat. no. ARS-1."; Includes index
ER  -