Ponce de León, Rogelio. “The Impersonal Verbs in the Portuguese Grammaticography Of The 18th Century: Description and Underlying Theoretical Approaches: Descrição E Abordagens teóricas Subjacentes”. Linha D’Água 32, no. 1 (April 23, 2019): 107–128. Accessed May 23, 2024. https://revistas.usp.br/linhadagua/article/view/153185.