版	7th ed.
出版情報	West Hartford, Conn. : The American Radio Relay League , c1955
大きさ	306 p. : ill. ; 24 cm
一般注記	"This work is Publication No. 15 of the Radio Amateur's Library, published by the League"
著者標目	American Radio Relay League
本文言語	英語
書誌ID	TB10008118
NCID	BA57636756