Dyfyniad APA

Descartes, R. (1980). Discourse on the method for rightly conducting one's reason....... Hackett.

Dyfyniad Arddull Chicago

Descartes, Rene. Discourse on the Method for Rightly Conducting One's Reason....... Indiana: Hackett, 1980.

Dyfyniad MLA

Descartes, Rene. Discourse on the Method for Rightly Conducting One's Reason....... Hackett, 1980.

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