Wick Calhoun & Pollock Roy. (2006). Six Disciplines of Breakthrough Learning: How to turn training and development into business results. Pfriffer A Wiley.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Wick Calhoun و Pollock Roy. Six Disciplines of Breakthrough Learning: How to Turn Training and Development into Business Results. San Francisco: Pfriffer A Wiley, 2006.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Wick Calhoun و Pollock Roy. Six Disciplines of Breakthrough Learning: How to Turn Training and Development into Business Results. Pfriffer A Wiley, 2006.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.