Fisher, J., & Kayes, G. (2018). This is a voice: 99 exercises to train, project and harness the power of your voice. Wellcome Collection.
Citazione stile Chigago Style (17a edizione)Fisher, Jeremy, e Gillyanne Kayes. This Is a Voice: 99 Exercises to Train, Project and Harness the Power of Your Voice. London: Wellcome Collection, 2018.
Citatione MLA (9a ed.)Fisher, Jeremy, e Gillyanne Kayes. This Is a Voice: 99 Exercises to Train, Project and Harness the Power of Your Voice. Wellcome Collection, 2018.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.