TY  - BOOK
AU  - Nilson,Arthur Reinhold
AU  - Hornung,J.L.
TI  - Practical radio communication: principles, systems, equipment, operation, including very high and ultra-high frequencies and frequency modulation 
U1  - 621.384 23
PY  - 1943///
CY  - New York, London
PB  - McGraw-Hill Book Company, inc.
KW  - Radio
N1  - Includes Index
ER  -