Dyfyniad APA

Dollard, J., Doob, L. W., Miller, N. E., Mowrer, O. H., & Sears, R. R. (1957). Frustration and aggression. New Haven: Yale University Press.

Dyfyniad Arddull Chicago

Dollard, John., Leonard W. Doob, Neal E. Miller, O. H. Mowrer, và Robert R. Sears. Frustration and Aggression. New Haven: Yale University Press, 1957.

Dyfyniad MLA

Dollard, John., et al. Frustration and Aggression. New Haven: Yale University Press, 1957.

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