Dyfyniad APA

Robinson, G. (1963). The foundations of geometry.-4th ed (4th ed.). University of Toronto.

Dyfyniad Arddull Chicago

Robinson, G.B. The Foundations of Geometry.-4th Ed. 4th ed. Toronto: University of Toronto, 1963.

Dyfyniad MLA

Robinson, G.B. The Foundations of Geometry.-4th Ed. 4th ed. University of Toronto, 1963.

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