Fensterheim, H., & Baer, J. L. (1975). Don't say yes when you want to say no: How assertiveness training can change your life. McKay.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Fensterheim, Herbert, و Jean L. Baer. Don't Say Yes When You Want to Say No: How Assertiveness Training Can Change Your Life. New York: McKay, 1975.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Fensterheim, Herbert, و Jean L. Baer. Don't Say Yes When You Want to Say No: How Assertiveness Training Can Change Your Life. McKay, 1975.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.