TY  - BOOK
ED  - United States.
ED  - United States.
TI  - Introduction to line radio communication ..
T2  - Radio communication pamphlet
AV  - TK5707 .U6 no. 41
PY  - 1923///
CY  - Washington
PB  - Govt. Print. Off.
KW  - Telegraph, Wireless
KW  - Radio
N1  - On verso of t.-p.: War department. Document no. 1114. Office of the adjutant general; "Prepared under the direction of the chief signal officer with the cooperation of the Bureau of Standards."
ER  -