Dyfyniad APA
Descartes, R. (1993). Discourse on method and meditations on first philosophy (3rd ed.). Hackett.
Dyfyniad Arddull Chicago
Descartes, Rene. Discourse on Method and Meditations on First Philosophy. 3rd ed. lndianapolis, Indiana: Hackett, 1993.
Dyfyniad MLA
Descartes, Rene. Discourse on Method and Meditations on First Philosophy. 3rd ed. Hackett, 1993.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.