Gilbert-Levin, R. (1999). Metacognition and self-regulating learning strategies in returning adult baccalaureate students. Northwestern University.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Gilbert-Levin, Renee. Metacognition and Self-regulating Learning Strategies in Returning Adult Baccalaureate Students. Evanston, Illinois: Northwestern University, 1999.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Gilbert-Levin, Renee. Metacognition and Self-regulating Learning Strategies in Returning Adult Baccalaureate Students. Northwestern University, 1999.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.