Arena, B., & Kettmann, S. (2018). What's wrong with US?: A coach's blunt take on the state of American soccer after a lifetime on the touchline (First edition.). Harper, an imprint of HarperCollinsPublishers.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Arena, Bruce, و Steve Kettmann. What's Wrong with US?: A Coach's Blunt Take on the State of American Soccer After a Lifetime on the Touchline. First edition. New York, NY: Harper, an imprint of HarperCollinsPublishers, 2018.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Arena, Bruce, و Steve Kettmann. What's Wrong with US?: A Coach's Blunt Take on the State of American Soccer After a Lifetime on the Touchline. First edition. Harper, an imprint of HarperCollinsPublishers, 2018.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.