Feldman, R. S. (2019). Understanding Psychology (14th ed.). Mc Graw Hill.
Chicago Style (17th ed.) ZitazioaFeldman, Robert S. Understanding Psychology. 14th ed. New York: Mc Graw Hill, 2019.
MLA (9th ed.) ZitazioaFeldman, Robert S. Understanding Psychology. 14th ed. Mc Graw Hill, 2019.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.