Bookshelf
The original uploader was <a href="https://en.wikibooks.org/wiki/User:%D0%82%D0%BE%D1%80%D1%92%D0%B5_%D0%94._%D0%91%D0%BE%D0%B6%D0%BE%D0%B2%D0%B8%D1%9B" class="extiw" title="wikibooks:User:Ђорђе Д. Божовић">Ђорђе Д. Божовић</a> at <a href="https://en.wikibooks.org/wiki/" class="extiw" title="wikibooks:">English Wikibooks</a>.
Transferred from <span class="plainlinks"><a class="external text" href="https://en.wikibooks.org">en.wikibooks</a></span> to Commons by <a href="//commons.wikimedia.org/wiki/User:Adrignola" title="User:Adrignola">Adrignola</a> using <a href="https://iw.toolforge.org/commonshelper/" class="extiw" title="toollabs:commonshelper/">CommonsHelper</a>.