Butler, C., & Greenhalgh, T. (2010). What is already known about involving users in service transformation? Wiley-Blackwell.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Butler, C., و T. Greenhalgh. What Is Already Known About Involving Users in Service Transformation? Wiley-Blackwell, 2010.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Butler, C., و T. Greenhalgh. What Is Already Known About Involving Users in Service Transformation? Wiley-Blackwell, 2010.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.