18) Graph/Chart/Map and Citation

http://www.google.com/imgres?start=154&um=1&hl=en&sa=N&biw=1311&bih=622&tbm=isch&tbnid=xJ05Un_yuO070M:&imgrefurl=http://itwasamazing-thebookwasbetter.tumblr.com/&docid=VoJzTaNYNIGzFM&imgurl=http://29.media.tumblr.com/tumblr_m1yhcufAEI1r84kmdo1_500.jpg&w=500&h=373&ei=1_OeT67MI4P48wSpnNnwDg&zoom=1&iact=hc&vpx=475&vpy=256&dur=1482&hovh=194&hovw=260&tx=182&ty=92&sig=103620547397680169946&page=7&tbnh=133&tbnw=174&ndsp=27&ved=1t:429,r:2,s:154,i:188