Dyfyniad APA

ebrary, Inc, Rott, H., & Horák, V. (2003). Possibility and reality: Metaphysics and logic. Ontos Verlag.

Dyfyniad Arddull Chicago

ebrary, Inc, Hans Rott, and Vítezslav Horák. Possibility and Reality: Metaphysics and Logic. Frankfurt: Ontos Verlag, 2003.

Dyfyniad MLA

ebrary, Inc, et al. Possibility and Reality: Metaphysics and Logic. Ontos Verlag, 2003.

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