Oxford scholarship online (Online service), Gruber, J., & Moskowitz, J. T. (2014). Positive emotion: Integrating the light sides and dark sides. Oxford University Press.
Chicago-viite (17. p.)Oxford scholarship online (Online service), June Gruber, ja Judith Tedlie Moskowitz. Positive Emotion: Integrating the Light Sides and Dark Sides. New York: Oxford University Press, 2014.
MLA-viite (9. p.)Oxford scholarship online (Online service), et al. Positive Emotion: Integrating the Light Sides and Dark Sides. Oxford University Press, 2014.
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