O'Donnell, P. K. (2018). The unknowns: The untold story of America's unknown solider and WWI's most decorated heroes who brought him home (First edition, First Grove Atlantic hardcover edition.). Atlantic Monthly Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)O'Donnell, Patrick K. The Unknowns: The Untold Story of America's Unknown Solider and WWI's Most Decorated Heroes Who Brought Him Home. First edition, First Grove Atlantic hardcover edition. New York: Atlantic Monthly Press, 2018.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)O'Donnell, Patrick K. The Unknowns: The Untold Story of America's Unknown Solider and WWI's Most Decorated Heroes Who Brought Him Home. First edition, First Grove Atlantic hardcover edition. Atlantic Monthly Press, 2018.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.