| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| The art of creative thinking | 978-0-06-463508-0 (0-06-463508-2) | 1980 |
| The Art of Creative Thinking/a Practical Guide Including Exercises and Illustrations | 978-0-06-097051-2 (0-06-097051-0) | 1986 |
R. Olson · R. Wallace · Robert O. · Robert Olson · Robert W. · Robert W. Olson · Robert Wallace