| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Modern Socialism: As Set Forth By Socialists in Their Speeches, Writings, and Programmes | 978-1-112-20390-9 (1-112-20390-7) | 2009 |
| Modern Socialism: As Set Forth By Socialists in Their Speeches, Writings, and Programmes | 978-1-112-20391-6 (1-112-20391-5) | 2009 |