Crabtree, Harold . An Elementary Treartment of the Theory of Spinning Tops and Gyroscopic Motion / Textual Documents Harold Crabtree. - 1st ed. / - New York : Longmans Green & Co , 1909. - xii,137p. : ill ; 24 cm . Subjects--Index Terms: Spinning tops Gyroscopic Motion G-Physics Dewey Class. No.: 531.3 / C 84 EL