Dyfyniad APA
Hothersall, D. (2004). History of psychology (4th ed.). McGraw Hill.
Dyfyniad Arddull Chicago
Hothersall, David. History of Psychology. 4th ed. Boston Burr Ridge: McGraw Hill, 2004.
Dyfyniad MLA
Hothersall, David. History of Psychology. 4th ed. McGraw Hill, 2004.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.