Cita APA

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

Citación estilo Chicago

Sachs, R K., y H. Wu. General Relativity for Mathematicians. Springer-Verlag, New York, 1977.

Cita MLA

Sachs, R K., y H. Wu. General Relativity for Mathematicians. 1977.