| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| The Grace of Great Things: Creativity and Innovation | 978-0-395-58868-0 (0-395-58868-5) | 1991 |
| Time and the Art of Living | 978-0-395-89831-4 (0-395-89831-5) | 1997 |
G.E · G. P. · R. E. · R. P. · Robert E. · Robert English · Robert G. · Robert Grudin · Robert P.