Feldman, R. S. (2005). Understanding Psychology (7th ed.). McGraw-Hill Companies, Inc..
Chicago Style (17th ed.) ZitazioaFeldman, Robert S. Understanding Psychology. 7th ed. Boston: McGraw-Hill Companies, Inc., 2005.
MLA (9th ed.) ZitazioaFeldman, Robert S. Understanding Psychology. 7th ed. McGraw-Hill Companies, Inc., 2005.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.