*[http://www.nycwalk.com/rock.html A Walking Tour of Rockefeller Center's Public Art.]
*[http://www.nycwalk.com/rock.html A Walking Tour of Rockefeller Center's Public Art.]
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==Further reading==
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* Jackson, Kenneth, ed. ''The Encyclopedia of New York City'' (1995), the best reference book; 1350pp; [http://www.amazon.com/Encyclopedia-New-York-City/dp/0300055366/ref=sr_1_1?ie=UTF8&s=books&qid=1240594479&sr=8-1 excerpt and text search]
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* Jackson, Kenneth and Sam Roberts, eds. ''The Almanac of New York City'' (2008)
==References==
==References==
*[http://www.infoplease.com/ipa/A0763098.html Information Please - Top 50 Cities in the U.S.]
*[http://www.infoplease.com/ipa/A0763098.html Information Please - Top 50 Cities in the U.S.]