American Psychological Association. (1996). Psychological methods. American Psychological Association.
Chicago Style (17th ed.) CitationAmerican Psychological Association. Psychological Methods. Washington, DC: American Psychological Association, 1996.
ציטוט MLAAmerican Psychological Association. Psychological Methods. American Psychological Association, 1996.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.