J.K · Jan Kancewicz · Jana Kannegießer · Joanna Knyzewska
| title | media type | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|---|
| Psychology of Strength | Paperback | 978-0-13-736629-3 (0-13-736629-9) | 1975 | George Solomon |
| Psychology of Strength | Hardcover | 978-0-13-736637-8 (0-13-736637-X) | 1975 | " |