Eisenhart, Luther Pfahler A treatise on the differential geometry of curves and surfaces by Luther Pfahler Eisenhart ... - Boston New York [etc.] Ginn and Company [c1909] - xi, 474 p. diagrs. 24 cm. LCCN: 09024990 Subjects--Topical Terms: Geometry, Differential. LC Class. No.: QA641 / .E6