If I understand your setup correctly, you want the first page of every chapter-level unit, whether numbered or unnumbered, to have no page number at all -- neither at the bottom center of a page nor in the header line.
You haven't indicated how you've achieved this look for the other chapter-level units, but one way of achieving this look globally, i.e., for the entire document, would be to insert the instructions
\makeatletter
\let\ps@plain\ps@empty
\pagestyle{plain}
\makeatletter
in the preamble. These instructions "let" the plain
page style (which prints a page number centered at the bottom of the page) to the empty
page style. I think you can guess what the main characteristic of the empty
page style is...
Bibliography
sectioning header) of thebook
document class: the first page is set with the page styleplain
(with the page number placed centered at the bottom of the page), and additional pages are set with page styleheadings
. If you don't like this setting and want to change it for the bibliography, you should probably change it for all chapter-level sectioning headers, whether numbered or unnumbered, as well. – Mico Sep 29 '14 at 17:24