Dyfyniad APA
Barbara, W., & Bamber R T. (1987). Introduction to psychology. McGraw-Hill.
Dyfyniad Arddull Chicago
Barbara, Wilkinson, and Bamber R T. Introduction to Psychology. New York: McGraw-Hill, 1987.
Dyfyniad MLA
Barbara, Wilkinson, and Bamber R T. Introduction to Psychology. McGraw-Hill, 1987.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.