Dyfyniad APA

Sound: Its uses and Control. Acoustical Society of America.

Dyfyniad Arddull Chicago

Sound: Its Uses and Control. Acoustical Society of America.

Dyfyniad MLA

Sound: Its Uses and Control. Acoustical Society of America.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.