BIBLIOGRAPHY
http://www.brainyquote.com/quotes/quotes/n/nicolausco127510.html#yMwWDxsyizQ7XOgo.99
Speake, Jennifer, and Thomas G Bergin."Copernicus, Nicolaus" Encyclopedia of Reniassance and the Reformantion, Revised Editon.New York:Facts on File, Inc., 2004. Modern World History Online. Facts on File, Inc.
Speake, Jennifer, and Thomas G Bergin."Copernicus, Nicolaus" Encyclopedia of Reniassance and the Reformantion, Revised Editon.New York:Facts on File, Inc., 2004. Modern World History Online. Facts on File, Inc.