Dyfyniad APA

Still, A., & Dryden, W. (2012). The historical and philosophical context of rational psychotherapy: The legacy of Epictetus. Karnac.

Dyfyniad Arddull Chicago

Still, Arthur, and Windy Dryden. The Historical and Philosophical Context of Rational Psychotherapy: The Legacy of Epictetus. London: Karnac, 2012.

Dyfyniad MLA

Still, Arthur, and Windy Dryden. The Historical and Philosophical Context of Rational Psychotherapy: The Legacy of Epictetus. Karnac, 2012.

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