Voice Foundation. (2004). Journal of Voice. Mosby.
Citação do estilo Chicago (17ª ed.)Voice Foundation. Journal of Voice. Saint Louis, Mo: Mosby, 2004.
Citação MLA (8ª ed.)Voice Foundation. Journal of Voice. Mosby, 2004.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.