Analysis of information sources in references of the Wikipedia article "Tratado de Petrópolis" in Portuguese language version.
|arquivourl= requer |arquivodata= (ajuda) 🔗|título= at position 29 (ajuda)|arquivourl= requer |arquivodata= (ajuda) 🔗 line feed character character in |titulo= at position 36 (ajuda)|arquivourl= requer |arquivodata= (ajuda) 🔗 line feed character character in |titulo= at position 9 (ajuda); line feed character character in |website= at position 11 (ajuda)