Seuling, B., & Haugen, R. (2009). There are millions of millionaires: And other freaky facts about earning, saving, and spending. Picture Window Books.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Seuling, Barbara, و Ryan Haugen. There Are Millions of Millionaires: And Other Freaky Facts About Earning, Saving, and Spending. Minneapolis, Minn.: Picture Window Books, 2009.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Seuling, Barbara, و Ryan Haugen. There Are Millions of Millionaires: And Other Freaky Facts About Earning, Saving, and Spending. Picture Window Books, 2009.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.