Dyfyniad APA

Ditchburn, R. (1963). Light. 2nd ed (2nd ed.). International Publishers.

Dyfyniad Arddull Chicago

Ditchburn, R.W. Light. 2nd Ed. 2nd ed. New York: International Publishers, 1963.

Dyfyniad MLA

Ditchburn, R.W. Light. 2nd Ed. 2nd ed. International Publishers, 1963.

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