Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

Hartle, J. B. Gravity: An Introduction to Einstein's General Relativity. San Francisco ; New Delhi: Addison-Wesley ; Pearson, 2003.

Cita MLA (8th ed.)

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