APA (7th ed.) Citation

Hartle, J. B. (2003). Gravity: An introduction to Einstein's general relativity. Pearson Education.

Chicago Style (17th ed.) Citation

Hartle, James B. Gravity: An Introduction to Einstein's General Relativity. San Francisco: Pearson Education, 2003.

MLA (9th ed.) Citation

Hartle, James B. Gravity: An Introduction to Einstein's General Relativity. Pearson Education, 2003.