You can use the short intro from chapter 2 forward (in portuguese of course):
MaryAnnFor the second and all subsequent sections, you may optionally use the shortened form of this intro disclaimer:
"Chapter [number] of O Cortiço by Aluísio Azevedo. This LibriVox recording is in the Public Domain."
If you wish, say:
"Recording by [your name], [city, your blog, podcast, web address]"
Only if applicable, say: