Citazione APA

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

Stile di citazione Chicago

Sachs, R. K., e Hung-hsi Wu. General Relativity for Mathematicians. New York: Springer-Verlag, 1977.

Citazione MLA

Sachs, R. K., e Hung-hsi Wu. General Relativity for Mathematicians. Springer-Verlag, 1977.