Fowler, Ralph Howard, 1889- The elementary differential geometry of plane curves / R. H. Fowl er. - Cambridge : University Press, 1920. - vi p., 1 1., 105 p. : diagrs. ; 22 cm. - Half-title: Cambridge tracts in mathematics and mathematical physics ... No.20 . Subjects--Topical Terms: Geometry, Differential.Curves, Plane. Dewey Class. No.: 516.7