Yoo, J. (1985). Man's search for peace. The Kyung Hee University Press.
Lua i Stíl Chicago (17ú heag.)Yoo, Jong-Youl. Man's Search for Peace. Seoul: The Kyung Hee University Press, 1985.
Lua MLA (9ú heag.)Yoo, Jong-Youl. Man's Search for Peace. The Kyung Hee University Press, 1985.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.