Biblio
1930
Ultimo: An imaginative narration of life under the earth with projections by John Vassos and text by Ruth Vassos. New York: E. P. Dutton, 1930.
1931
"Utopia" In The Tablet (London). Vol. 157., 1931.
1932
United States of the World. Buffalo, NY: Otto Karklin, 1932.
"Utopia By Thermometer" In The North American Review (Boston, MA). Vol. 234.2 ., 1932.
1933
Unborn Tomorrow. London: W. Collins & Co, 1933.
1934
Under the Label. London: John Heritage, 1934.
Universalism, The New Spirit, A Reborn World, Earthly Happiness, The Ideal State!!! A Book dealing with a new social system destined to solve the present irksome problems of the world--Peace, disarmament, social improvement, international union and financial recovery. Montréal, QC, Canada: Ptd. by Standard Sample Card Co, 1934.
Utopia Dawns. Boston, MA: Utopia Publishing Co, 1934.
The Utopians Are Coming; A New Interpretation of Constitutional Americanism. Hollywood, CA: Cloister Press, 1934.
1935
The Unpredictable Adventure: A Comedy of Woman's Independence. Garden City, NY: Doubleday, Doran & Co, 1935.
1937
The Unholy City. New York: The Vanguard Press, 1937.
The Unknown Dictator. London: Arthur H. Stockwell, 1937.
"Utopia and/or Bust" In Nation's Business (Washington, DC). Vol. 25 ., 1937.
1938
"Utopia" In Dominion. Christchurch, New Zealand: Pegasus Press, 1938.
1939
"The Ultimate Catalyst" In Thrilling Wonder Stories (New York) . Vol. 13.3., 1939.
Union Now: A Proposal for a Federal Union of the Democracies of the North Atlantic. New York: Harper, 1939.
"The Unknown Citizen" In The Listener (London). Vol. 22.551 ., 1939.
1940
Utopia, Inc. New York: Fortuny's, 1940.
1941
“Uprooted Peoples” In Guide to the New World: A Handbook of Constructive World Revolution. London: Victor Gollancz, 1941.
Utopia Right Around the Corner. Non-Factual. A Story of Fiction Told As If It Were Factual. Long Beach, CA: H.J. Kemp Co, 1941.
1942
An Unknown Land. London: George Allen and Unwin Ltd, 1942.
1945
"Utopia 1995" In A Bird’s-Eye View of the Postwar World, Edited by Barrows, R. M. and Foster, Margaret. Chicago, IL: Consolidated Book Publishers, 1945.
1950
"U-Turn" In Astounding Science Fiction (New York). Vol. 45.2 ., 1950.
1953
"The Ultimate City" In Science Fiction Plus . Vol. 1.2., 1953.
Unborn Tomorrow. A Last Story. London: MacDonald, 1953.