| title | media type | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|---|
| Rubel on Karl Marx: Five Essays | Hardcover | 978-0-521-23839-7 (0-521-23839-0) | 1981 | Joseph J. O'Malley |
| Rubel on Karl Marx: Five Essays | Paperback | 978-0-521-28251-2 (0-521-28251-9) | 1981 | " |