K. B. · R. B · R.K. · Rita Baltus
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Personal Psychology for Life and Work | 978-0-02-801096-0 (0-02-801096-5) | 1994 |
| Personal Psychology for Life and Work | 978-0-07-003590-4 (0-07-003590-3) | 1988 |
| Personal psychology for life and work | 978-0-07-003594-2 (0-07-003594-6) | 1983 |