The Controversy on the Comets of 1618, Galileo Galilei, Horatio Grassi, Mario Guiducci, Johann Kepler, University of Pennsylvania Press, Inc., University of Pennsylvania Press,History of science,Science: general issues, ,, Anniversary Collection, United States, en-UShttps://www.pennpress.org, [BLURB],[CITY],,books, ebooks, biblet, Book2look