00744cam a22002651 4500 10211213 BD-DhUL 20150115083104.0 750505s1945 nyua b 000 0 eng 45009352 (OCoLC)1311298 DLC FM OCoLC DLC BD-DhUL premarc TK6550 .A8 621.3841 ATP Atherton, Ralph, 1906- Principles of radio for operators / by Ralph Atherton. New York : The Macmillan Company , c1945 . x, 344 p. : ill. ; 21 cm. GBP. 1.6 Includes index. Radio. 7 cbc oclcrpl u ncip 19 y-gencatlg ddc BK 31260 31260 0 0 ddc 0 621_384100000000000_ATP 0 NFIC 59028 DUSL DUSL GEN 2015-01-15 621.3841 ATP 49749 2015-01-15 2015-01-15 BK