This image of simple geometry is ineligible for copyright and therefore in the public domain, because it consists entirely of information that is common property and contains no original authorship.
{{subst:Upload marker added by en.wp UW}} {{Information |Description = {{en|pic of my personal copy of the blue book }} |Source = camera phone<br/> '''Previously published:''' na |Date = 2013-01-31 |Author = Wjmummert }}