Young, H. D., Freedman, R. A., Sandin, T., & Ford, A. L. (1996). University physics (9th edition.). Addison-Wesley Publishing Company, Inc.
Dyfyniad Arddull ChicagoYoung, Hugh D., Roger A. Freedman, T.R Sandin, and A. Lewis Ford. University Physics. 9th edition. Reading, Massachusetts: Addison-Wesley Publishing Company, Inc, 1996.
Dyfyniad MLAYoung, Hugh D., et al. University Physics. 9th edition. Addison-Wesley Publishing Company, Inc, 1996.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.