Nelson, J. (2017). The voice exercise book: A guide to healthy and effective voice use. National Theatre Publishing.
Citazione stile Chigago Style (17a edizione)Nelson, Jeannette. The Voice Exercise Book: A Guide to Healthy and Effective Voice Use. London: National Theatre Publishing, 2017.
Citatione MLA (9a ed.)Nelson, Jeannette. The Voice Exercise Book: A Guide to Healthy and Effective Voice Use. National Theatre Publishing, 2017.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.