Gray, Alfred, 1939- Modern differential geometry of curves and surfaces / Alfred Gray. - Boca Raton, Fla. : CRC Press, 1993. - 664 p. : ill. ; 23 cm. - Studies in advanced mathematics . Includes bibliographical references (p. 645-657) and index. ISBN: 0849378729 Subjects--Topical Terms: Geometry, Differential.