Lipschutz, S. (1969). Differential Geometry (International ed.). McGraw-Hill.
Cita Chicago (17th ed.)Lipschutz, Seymour. Differential Geometry. International ed. New York: McGraw-Hill, 1969.
Cita MLA (9th ed.)Lipschutz, Seymour. Differential Geometry. International ed. McGraw-Hill, 1969.
Atenció: Aquestes cites poden no estar 100% correctes.