Sources+Cited+(Leonardo+da+Vinci+–+4th+Period)

=Sources Cited - Leonardo da Vinci= Book #1 Title: the world book encyclopedia Author:David Summers City and Date of Publication:Chicago,Illionis Publisher:world book inc.

Book #2 Title: the world book of knowledge Author:the renaissance sketchbook City and Date of Publication:1986 USA Publisher:U.S. patent office

Website #1 Author: Michael W. Davidson Florida State University Title of website:Leonardo Da Vinci Web address:http://micro.magnet.fsu.edu/optics/timeline/people/davinci.html Copyright date:2010 Date found: 3/2/11 Website #2 Author: Ludwig Heinrich heydenreich Title of website:history Web address:http://www.history.com/topics/leonardo-da-vinci Copyright date:2011 Date found:3/3/11

Website #3 Author: Ludwig Heinrich Heydenreich Title of website:Encyclopedia britanica Web address:http://www.britanica.com Copyright date:no copyright date found Date found:3/2/11

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