"Harlow Shapley (American Astronomer) -- Britannica Online Encyclopedia." Encyclopedia - Britannica Online Encyclopedia. Web. 18 May 2011. <http://www.britannica.com/EBchecked/topic/538693/Harlow-Shapley>.
"Harlow Shapley." NNDB: Tracking the Entire World. Soylent Communications, 2011. Web. 18 May 2011. <http://www.nndb.com/people/649/000167148/>.
Tenn, Joe. "The Bruce Medalists: Harlow Shapley." SSU Department of Physics & Astronomy - Home. Sonoma, 11 Aug. 2008. Web. 18 May 2011. <http://www.phys-astro.sonoma.edu/brucemedalists/Shapley/index.html>.
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