Olson, T., & Allred, S. (2008). How to get rich in the California Gold Rush: An adventurer's guide to the fabulous riches discovered in 1848 ... National Geographic.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Olson, Tod, و Scott Allred. How to Get Rich in the California Gold Rush: An Adventurer's Guide to the Fabulous Riches Discovered in 1848 ... Washington, D.C.: National Geographic, 2008.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Olson, Tod, و Scott Allred. How to Get Rich in the California Gold Rush: An Adventurer's Guide to the Fabulous Riches Discovered in 1848 ... National Geographic, 2008.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.