Kallen, H. M. (1958). Utopians at bay: By Horace M. Kallen. Theodor Herzl Foundation.
Chicago-Zitierstil (17. Ausg.)Kallen, Horace Meyer. Utopians at Bay: By Horace M. Kallen. New York: Theodor Herzl Foundation, 1958.
MLA-Zitierstil (8. Ausg.)Kallen, Horace Meyer. Utopians at Bay: By Horace M. Kallen. Theodor Herzl Foundation, 1958.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.