| title | ISBN-13 (ISBN-10) | year of publication | |
|---|---|---|---|
| Manage more by doing less | 978-0-07-038370-8 (0-07-038370-7) | 1971 | |
| So lernt man führen | 978-3-451-17875-7 (3-451-17875-3) | 1983 | |
| Superior Supervision: The 10% Solution | 978-0-02-919091-3 (0-02-919091-6) | 1998 |
Herder · Macmillan · McGraw-Hill