na YOGYA-02090000003922 20150427130059.0 ind 0010-020900000003922 621.384 621.384 Rad The RADIO amateurs hand book the standard manual of amateur radio communication Cet. 1 West hartfard conn The American Radio Relay Lengue 1936 380 hlm. : ilus. ; 24 cm. Bibliografi : hlm. 380 Indeks Radio Amatir YOPDYOG 44856-a