Walker, J., Halliday, D., & Resnick, R. (2011). Halliday & Resnick principles of physics (Extended 9th edition.). Wiley.
Cita Chicago (17th ed.)Walker, Jearl, David Halliday, i Robert Resnick. Halliday & Resnick Principles of Physics. Extended 9th edition. Hoboken, N.J.: Wiley, 2011.
Cita MLA (8th ed.)Walker, Jearl, et al. Halliday & Resnick Principles of Physics. Extended 9th edition. Wiley, 2011.
Atenció: Aquestes cites poden no estar 100% correctes.