Billhardt, B., & Kracklauer, N. (2024). The 12-week MBA: Learn the skills you need to lead in business today (First edition.). Hachette Go.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Billhardt, Bjorn, و Nathan Kracklauer. The 12-week MBA: Learn the Skills You Need to Lead in Business Today. First edition. New York: Hachette Go, 2024.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Billhardt, Bjorn, و Nathan Kracklauer. The 12-week MBA: Learn the Skills You Need to Lead in Business Today. First edition. Hachette Go, 2024.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.