Koch, S. (1959). Psychology: A Study of a Science. McGraw-Hill.
Chicago Style aipamenaKoch, Sigmund. Psychology: A Study of a Science. New York: McGraw-Hill, 1959.
MLA aipamenaKoch, Sigmund. Psychology: A Study of a Science. McGraw-Hill, 1959.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.