Carr, H.Wildon . The General Principle of Relativity: In its Philosophical and Historical Aspect / Textual Documents H.Wildon Carr. - 1st ed. / - New York : Macmillan and co , 1920. - 165p. : ill ; 22cm . Subjects--Index Terms: Physics Relativity G-Physics Dewey Class. No.: 530.1 / C 23 G