Helfrick, Albert D.
Amateur radio equipment fundamentals Alfred D. Helfrick - New Jersey Prentice-Hall 1982 - xii, 284 p. ill. 24 cm.
0130236551
Radio
623.8413 / HEL/1982
Amateur radio equipment fundamentals Alfred D. Helfrick - New Jersey Prentice-Hall 1982 - xii, 284 p. ill. 24 cm.
0130236551
Radio
623.8413 / HEL/1982