Dyfyniad APA

Allport, G. W., Stagner, R., Craik, K. H., Hogan, R., & Wolfe, R. N. (1993). Fifty years of personality psychology. Plenum Press.

Dyfyniad Arddull Chicago

Allport, Gordon W., Ross Stagner, Kenneth H. Craik, Robert Hogan, and Raymond N. Wolfe. Fifty Years of Personality Psychology. New York: Plenum Press, 1993.

Dyfyniad MLA

Allport, Gordon W., et al. Fifty Years of Personality Psychology. Plenum Press, 1993.

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