Cita APA (7th ed.)

Sachs, R. K., & Wu, H. (1977). General relativity for mathematicians. Springer-Verlag.

Cita Chicago (17th ed.)

Sachs, R. K., i H. Wu. General Relativity for Mathematicians. Nueva York: Springer-Verlag, 1977.

Cita MLA (9th ed.)

Sachs, R. K., i H. Wu. General Relativity for Mathematicians. Springer-Verlag, 1977.