Dyfyniad APA

Burt, C. L. (1961). The backward child ([5th ed.). University of London Press.

Dyfyniad Arddull Chicago

Burt, Cyril Lodowic. The Backward Child. [5th ed. London]: University of London Press, 1961.

Dyfyniad MLA

Burt, Cyril Lodowic. The Backward Child. [5th ed. University of London Press, 1961.

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