Langdon-Davies, John.
How wireless came; illustrated by Betty Barr. - London, G. Routledge & sons, ltd., 1935. - x, 275, [1] p. incl. front., illus. 19 cm.
"Some books on wireless": p. [276]
36000586
Telegraph, Wireless.
TK5711 / .L3 1935
621.38409
How wireless came; illustrated by Betty Barr. - London, G. Routledge & sons, ltd., 1935. - x, 275, [1] p. incl. front., illus. 19 cm.
"Some books on wireless": p. [276]
36000586
Telegraph, Wireless.
TK5711 / .L3 1935
621.38409