American Philosophical Society. Proceedings of the American Philosophical Society Held at Philadelphia for Promoting Useful Knowledge: Symposium on Copernicus. Philadelphia: American Philosophical Society, 1973, 550 p.
A collection of scholarly papers presented at the symposium by Owen Gingerich, Anthony Grafton, Willy Hartner, and Noel Swerdlow on the five hundredth centenary of Copernicus's birth.
Armitage, Angus. Copernicus: The Founder of Modern Astronomy. London: George Allen & Unwin Ltd, 1938, 183 p.
Presents an account of the research that led Copernicus to form his theories of...
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