Richard E. Berg. Demonstrations in acoustics. New Jersey: Univ. of Maryland.
Dyfyniad Arddull ChicagoRichard E. Berg. Demonstrations in Acoustics. New Jersey: Univ. of Maryland.
Dyfyniad MLARichard E. Berg. Demonstrations in Acoustics. New Jersey: Univ. of Maryland.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.