APA (7 ম সংস্করণ) উদ্ধৃতি

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

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

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

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

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