Graduate Record Examinations Board & Educational Testing Service. (1993). Practicing to take the GRE mathematics test (2nd ed.). Published by Educational Testing Service for Graduate Record Examinations Board.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Graduate Record Examinations Board و Educational Testing Service. Practicing to Take the GRE Mathematics Test. 2nd ed. Princeton, N.J: Published by Educational Testing Service for Graduate Record Examinations Board, 1993.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Graduate Record Examinations Board و Educational Testing Service. Practicing to Take the GRE Mathematics Test. 2nd ed. Published by Educational Testing Service for Graduate Record Examinations Board, 1993.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.