Dyfyniad APA

Walker, J., Halliday, D., & Resnick, R. (2011). Halliday & Resnick principles of physics (Extended 9th edition.). Wiley.

Dyfyniad Arddull Chicago

Walker, Jearl, David Halliday, and Robert Resnick. Halliday & Resnick Principles of Physics. Extended 9th edition. Hoboken, N.J.: Wiley, 2011.

Dyfyniad MLA

Walker, Jearl, et al. Halliday & Resnick Principles of Physics. Extended 9th edition. Wiley, 2011.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.