Trouble with header with \chapter*{} [duplicate]

UPDATE: edit the question and the code, as I've been asked to do.

How can I set it up so "Anexos" or "Tablas" appears in my header, whith this code?

\begin{document}\chapter{Referencias bibliograficas}\newpage\chapter*{Anexos}\section*{Tablas}\end{document}

My problem is that Latex gives me a header with "Referencias bibliograficas" in the Anexos chapter page. I use this code because I want "Anexos" and "Tablas" unnumbered.

Thanks in advance,

Jorge