Cita APA (7a ed.)

Hartle, J. B. (2003). Gravity: An introduction to Einstein's general relativity. Addison-Wesley.

Cita Chicago Style (17a ed.)

Hartle, J. B. Gravity: An Introduction to Einstein's General Relativity. San Francisco [etc.]: Addison-Wesley, 2003.

Cita MLA (9a ed.)

Hartle, J. B. Gravity: An Introduction to Einstein's General Relativity. Addison-Wesley, 2003.