de Felippe, A. C. N., Grillo, M. H. M. M., & Grechi, T. H. (2006). Standardization of acoustic measures for normal voice patterns. Brazilian journal of otorhinolaryngology, 72(5), 659-664. https://doi.org/10.1016/S1808-8694(15)31023-5
Citace podle Chicago (17th ed.)de Felippe, Ana Clara Naufel, Maria Helena Marotti Martelletti Grillo, a Thaís Helena Grechi. "Standardization of Acoustic Measures for Normal Voice Patterns." Brazilian Journal of Otorhinolaryngology 72, no. 5 (2006): 659-664. https://doi.org/10.1016/S1808-8694(15)31023-5.
Citace podle MLA (9th ed.)de Felippe, Ana Clara Naufel, et al. "Standardization of Acoustic Measures for Normal Voice Patterns." Brazilian Journal of Otorhinolaryngology, vol. 72, no. 5, 2006, pp. 659-664, https://doi.org/10.1016/S1808-8694(15)31023-5.