| title | media type | ISBN-13 | year of publication | |
|---|---|---|---|---|
| Individual and Small Group Decisions | Paperback | 978-0-387-97156-8 | 1989 | |
| Individual and Small Group Decisions | Taschenbuch | 978-3-540-97156-6 | 1989 | |
| Strategic and Tactical Decisions | Broschiert | 978-3-540-96819-1 | 1999 | |
| Strategic and Tactical Decisions | Paperback | 978-0-387-96819-3 | 1988 |