Gaya APA
Wilson, M, J., Hale, B, S. (1988).
The ARRL handbook for the radio amateur .
Newington:
The American Radio Relay League.
Gaya MLA
Wilson, Mark, J.., Hale, Bruce, S..
"The ARRL handbook for the radio amateur".
Newington:
The American Radio Relay League,
1988.
Text.