Dyfyniad APA

(1992). Physics: Its methods and meanings (6th ed.). Prentice-Hall.

Dyfyniad Arddull Chicago

Physics: Its Methods and Meanings. 6th ed. Needham, Mass: Prentice-Hall, 1992.

Dyfyniad MLA

Physics: Its Methods and Meanings. 6th ed. Prentice-Hall, 1992.

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