Hartle, J. B. (2003). Gravity: An introduction to Einstein's general relativity. Addison-Wesley ; Pearson.
芝加哥风格引文Hartle, J. B. Gravity: An Introduction to Einstein's General Relativity. San Francisco ; New Delhi: Addison-Wesley ; Pearson, 2003.
MLA引文Hartle, J. B. Gravity: An Introduction to Einstein's General Relativity. Addison-Wesley ; Pearson, 2003.
警告：这些引文格式不一定是100％准确.