Hart, P., & Gray, M. J. (1992). From gatekeeper to advocate: Transforming the role of the school counselor. College Entrance Examination Board.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Hart, Phyllis, و Maryann Jacobi Gray. From Gatekeeper to Advocate: Transforming the Role of the School Counselor. New York: College Entrance Examination Board, 1992.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Hart, Phyllis, و Maryann Jacobi Gray. From Gatekeeper to Advocate: Transforming the Role of the School Counselor. College Entrance Examination Board, 1992.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.