Bibliography
Guicciardini, Niccolo (2005). Chapter 5 - Isaac Newton, Philosophiae naturalis principia mathematica, first edition (1687), Editor(s): I. Grattan-Guinness, Roger Cooke, Leo Corry, Pierre Crepel, Niccolo Guicciardini, Landmark Writings in Western Mathematics 1640-1940, pp. 59-87. Elsevier Science.