Monday, January 10, 2011

Sources

MacPherson, Hector. Makers of Astronomy. Oxford: Clarendon Press, 1933. Questia. Web. 10 Jan. 2011.

http://www.daviddarling.info/encyclopedia/M/Madler.html

http://adsabs.harvard.edu/abs/1988QJRAS..29..313T
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