Graduate Record Examinations Board. (1992). Practicing to take the GRE general test--no. 9. Educational Testing Center for the Graduate Record Examinations Board.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Graduate Record Examinations Board. Practicing to Take the GRE General Test--no. 9. Princeton, N.J: Educational Testing Center for the Graduate Record Examinations Board, 1992.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Graduate Record Examinations Board. Practicing to Take the GRE General Test--no. 9. Educational Testing Center for the Graduate Record Examinations Board, 1992.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.