National Geographic Society (U.S.). Book Division. (2020). Drives of a lifetime: 500 of the world's greatest road trips (Second edition.). National Geographic.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)National Geographic Society (U.S.). Book Division. Drives of a Lifetime: 500 of the World's Greatest Road Trips. Second edition. Washington, DC: National Geographic, 2020.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)National Geographic Society (U.S.). Book Division. Drives of a Lifetime: 500 of the World's Greatest Road Trips. Second edition. National Geographic, 2020.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.