| title | ISBN-13 | year of publication |
|---|---|---|
| An Argument for God | 978-0-533-13752-7 | 2001 |
| Art Treasures of Eastern Europe | 978-0-297-00437-0 | 1972 |
| Dannunzio: The Poet As Superman | 978-0-8392-1022-1 | 1960 |
| Propaganda The Art of Persuasion: World War II Complete 2 Volume Set (An Allied and Axis Visual Record, 1933-1945 | 978-0-935472-21-9 | 1977 |
| The Vatican in the Age of the Dictators, 1922-1945 | 978-0-03-007736-4 | 1974 |
| Vatican in the Age of the Dictators | 978-0-340-02394-5 | 1973 |
Astor-Honor Inc · Hodder & Stoughton · Holt McDougal · Priv.Pub. · Vantage Press · Weidenfeld & Nicolson