Johnson, S., & Roberts, T. (2018). Who moved my cheese?: An a-mazing way to deal with change in your work and in your life (Unabridged.). Penguin Audio.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Johnson, Spencer, و Tony Roberts. Who Moved My Cheese?: An A-mazing Way to Deal with Change in Your Work and in Your Life. Unabridged. New York: Penguin Audio, 2018.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Johnson, Spencer, و Tony Roberts. Who Moved My Cheese?: An A-mazing Way to Deal with Change in Your Work and in Your Life. Unabridged. Penguin Audio, 2018.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.