Feurs, D., Gardner, R. B., Helgason, S., & Simon, U. (1985). Global differential geometry and global analysis 1984. Springer-Verlag.
Cita Chicago (17th ed.)Feurs, D., R. B. Gardner, Sigurdur Helgason, i U. Simon. Global Differential Geometry and Global Analysis 1984. Berlín: Springer-Verlag, 1985.
Cita MLA (9th ed.)Feurs, D., et al. Global Differential Geometry and Global Analysis 1984. Springer-Verlag, 1985.
Atenció: Aquestes cites poden no estar 100% correctes.