Borwick, J. (1994). Loudspeaker and headphone handbook (2nd ed.). Focal Press.
Lua i Stíl Chicago (17ú heag.)Borwick, John. Loudspeaker and Headphone Handbook. 2nd ed. Oxford: Focal Press, 1994.
Lua MLA (9ú heag.)Borwick, John. Loudspeaker and Headphone Handbook. 2nd ed. Focal Press, 1994.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.