Dyfyniad APA

Halliday, D., Resnick, R., & Walker, J. (2013). Principles of physics (9nth extd.). Wiley India.

Dyfyniad Arddull Chicago

Halliday, David, Robert Resnick, and Jearl Walker. Principles of Physics. 9nth extd. New Delhi: Wiley India, 2013.

Dyfyniad MLA

Halliday, David, et al. Principles of Physics. 9nth extd. Wiley India, 2013.

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