Dyfyniad APA

(2012). Psychological thought. Trier, Germany: PsychOpen operated by Leibniz-Institute for Psychology Information, University of Trier.

Dyfyniad Arddull Chicago

Psychological Thought. Trier, Germany: PsychOpen operated by Leibniz-Institute for Psychology Information, University of Trier, 2012.

Dyfyniad MLA

Psychological Thought. Trier, Germany: PsychOpen operated by Leibniz-Institute for Psychology Information, University of Trier, 2012.

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