Kirk, L. (1986). The quiet hour: The educational implications of its use and implementation in the American workplace. University of Massachusetts.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Kirk, Lynn. The Quiet Hour: The Educational Implications of Its Use and Implementation in the American Workplace. Amherst, MA.: University of Massachusetts, 1986.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Kirk, Lynn. The Quiet Hour: The Educational Implications of Its Use and Implementation in the American Workplace. University of Massachusetts, 1986.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.