Wagner, T., & Costanzo, P. (2011). The global achievement gap: Why even our best schools don't teach the new survival skills our children need—-and what we can do about it (Unabridged.). Tantor Media.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Wagner, Tony, و Paul Costanzo. The Global Achievement Gap: Why Even Our Best Schools Don't Teach the New Survival Skills Our Children Need—-and What We Can Do About It. Unabridged. Old Saybrook: Tantor Media, 2011.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Wagner, Tony, و Paul Costanzo. The Global Achievement Gap: Why Even Our Best Schools Don't Teach the New Survival Skills Our Children Need—-and What We Can Do About It. Unabridged. Tantor Media, 2011.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.