Cite Sources Used ...Just as they did icon png download

The is a request for anyone to cite any source used to present or to publish within a blog, book, report, etc. or cliparts. The background picture shows scholars in one of the oldest library. Not only books, but also online resources should reflect referenced findings, research, ideas, concepts, pictures, films, sounds, tunes, design, drawings, graphics, etc. Background picture source: commons.wikimedia.org/wiki/File:Ancientlibraryalex.jpg Info (1) www.jstor.org/stable/592887 Info (2) www.ehow.com/how_4894170_cite-art-used-powerpoint-presentations.html