Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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