Roth, Leland M.. Understanding Architecture: Its Elements, History, and Meaning. New York, NY: Icon Editions, 1993. Print.
Ching, Frank, Mark Jarzombek, and Vikramaditya Prakash. A Global History of Architecture . 2nd ed. Hoboken, N.J.: Wiley, 2011. Print.
image sources:
http://en.wikipedia.org/wiki/File:Cath%C3%A9drale_St-Paul_-_entr%C3%A9e_principale.jpg
http://www.london-architecture.info/LO-038.htm
http://travel.webshots.com/photo/2866548470060122320FLclGb
http://commons.wikimedia.org/wiki/File:St_Mary_Woolnoth,_Lombard_Street,_London_EC3_-_East_end_-_geograph.org.uk_-_1203001.jpg
http://www.greatbuildings.com/cgi-bin/gbi.cgi/The_Louvre.html/cid_aj3310_b.html
http://www.sacred-destinations.com/england/images/london/christ-church-spitalfields/resized/interior-cc-homemade.jpg
http://www.flickr.com/photos/ddtmmm/3590197572/
http://www.apollo-magazine.com/article_images/articledir_1597/798596/1_fullsize.jpg
http://en.wikipedia.org/wiki/File:St_George_Bloomsbury_02.jpg
