Oster, E. (2021). The family firm: A data-driven guide to better decision making in the early school years. Penguin Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Oster, Emily. The Family Firm: A Data-driven Guide to Better Decision Making in the Early School Years. New York: Penguin Press, 2021.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Oster, Emily. The Family Firm: A Data-driven Guide to Better Decision Making in the Early School Years. Penguin Press, 2021.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.