Dyfyniad APA

BARKER, S. F. (1964). Philosophy of mathematics. Cliffs, Prentice-Hall.

Dyfyniad Arddull Chicago

BARKER, Stephen F. Philosophy of Mathematics. Englewood: Cliffs, Prentice-Hall, 1964.

Dyfyniad MLA

BARKER, Stephen F. Philosophy of Mathematics. Cliffs, Prentice-Hall, 1964.

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