Hartle, J. B. (2003). Gravity: An introduction to Einstein's general relativity. Addison-Wesley ; Pearson.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHartle, J. B. Gravity: An Introduction to Einstein's General Relativity. San Francisco ; New Delhi: Addison-Wesley ; Pearson, 2003.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHartle, J. B. Gravity: An Introduction to Einstein's General Relativity. Addison-Wesley ; Pearson, 2003.
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