| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Karl Marx, an intimate biography | 978-0-07-048072-8 (0-07-048072-9) | 1978 |
| Sources of democracy;: Voices of freedom, hope and justice | 978-0-07-048073-5 (0-07-048073-7) | 1973 |
K.P. · S.K. · S P · S. Padover · Saul K. Padover