Welch, G. F. (1983). Improvability of poor pitch singing: Experiments in feedback. University of London.
Chicagoスタイル(17版)引用形式Welch, Graham F. Improvability of Poor Pitch Singing: Experiments in Feedback. University of London, 1983.
MLA(8版)引用形式Welch, Graham F. Improvability of Poor Pitch Singing: Experiments in Feedback. University of London, 1983.
警告: この引用は必ずしも正確ではありません.