APA استشهاد

Feldman,Robert S. (2008). Understanding psychology (8th ed.). McGraw Hill.

استشهاد بنمط شيكاغو

Feldman,Robert S. Understanding Psychology. 8th ed. Boston: McGraw Hill, 2008.

MLA استشهاد

Feldman,Robert S. Understanding Psychology. 8th ed. McGraw Hill, 2008.