APA引文

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

Chicago Edition Citation

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

MLA引文

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

警告：這些引文格式不一定是100％准確.