Peel, H.I.F. Elements of Radio engineering / H.I.F.Peel. - 2nd ed. red. - London : Cleaver-hume press ltd, c 1960. - 257 p. : ill. ; 19 cm. Includes index. 339 339 Subjects--Topical Terms: Radio. Dewey Class. No.: 621.3841 / P345e