Westfall, Richard S. Force in Newton?s physics the science of dynamics in the seventeenth century Richard S. Westfall - London, New York, Macdonald and Co.; American Elsevier 1971. - xii, 579 p.; illus. 24 cm. Bibliography: p. 551-565. ISBN: 0444196110 Subjects--Topical Terms: Dynamics--History--17th century