Dyfyniad APA

Welch, G. F. (1983). Improvability of poor pitch singing: Experiments in feedback. University of London.

Dyfyniad Arddull Chicago

Welch, Graham F. Improvability of Poor Pitch Singing: Experiments in Feedback. University of London, 1983.

Dyfyniad MLA

Welch, Graham F. Improvability of Poor Pitch Singing: Experiments in Feedback. University of London, 1983.

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