Welch, G. F. (1983). Improvability of poor pitch singing: Experiments in feedback. University of London.
Chicago-стиль цитированияWelch, Graham F. Improvability of Poor Pitch Singing: Experiments in Feedback. University of London, 1983.
MLA-цитированиеWelch, Graham F. Improvability of Poor Pitch Singing: Experiments in Feedback. University of London, 1983.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.