Campbell, J. (2004). The final frontiersman: Heimo Korth and his family, alone in Alaska's arctic wilderness (1st Atria Books hardcover ed.). Atria Books.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Campbell, James. The Final Frontiersman: Heimo Korth and His Family, Alone in Alaska's Arctic Wilderness. 1st Atria Books hardcover ed. New York: Atria Books, 2004.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Campbell, James. The Final Frontiersman: Heimo Korth and His Family, Alone in Alaska's Arctic Wilderness. 1st Atria Books hardcover ed. Atria Books, 2004.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.