Dyfyniad APA
ebrary, Inc, Moskowitz, G. B., & Halvorson, H. G. (2009). The psychology of goals. Guilford Press.
Dyfyniad Arddull Chicago
ebrary, Inc, Gordon B. Moskowitz, and Heidi Grant Halvorson. The Psychology of Goals. New York: Guilford Press, 2009.
Dyfyniad MLA
ebrary, Inc, et al. The Psychology of Goals. Guilford Press, 2009.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.