Langford-Smith, F. (1967). Radio designer's handbook (4th ed.). Iliffe.
Dyfyniad Arddull ChicagoLangford-Smith, F. Radio Designer's Handbook. 4th ed. London: Iliffe, 1967.
Dyfyniad MLALangford-Smith, F. Radio Designer's Handbook. 4th ed. Iliffe, 1967.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.