Gee, V., & Gee, S. (2011). Business improv: Experiential learning exercises to train employees to handle every situation with success. McGraw-Hill.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Gee, Val, و Sarah Gee. Business Improv: Experiential Learning Exercises to Train Employees to Handle Every Situation with Success. New York: McGraw-Hill, 2011.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Gee, Val, و Sarah Gee. Business Improv: Experiential Learning Exercises to Train Employees to Handle Every Situation with Success. McGraw-Hill, 2011.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.