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.
Chicago Style (17th ed.) CitationO'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.
MLA (8th ed.) CitationO'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.
Warning: These citations may not always be 100% accurate.