Dyfyniad APA

Nelkon, M., & Parker, P. (1995). Advanced level physics (7th ed.). CBS publishers.

Dyfyniad Arddull Chicago

Nelkon, M., and P. Parker. Advanced Level Physics. 7th ed. New Delhi: CBS publishers, 1995.

Dyfyniad MLA

Nelkon, M., and P. Parker. Advanced Level Physics. 7th ed. CBS publishers, 1995.

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