APA استشهاد

Koch, S. (1959). Psychology: A Study of a Science. McGraw-Hill.

استشهاد بنمط شيكاغو

Koch, Sigmund. Psychology: A Study of a Science. New York: McGraw-Hill, 1959.

MLA استشهاد

Koch, Sigmund. Psychology: A Study of a Science. McGraw-Hill, 1959.