| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Managing Professional Services Enterprises | 978-O-273-31826-2 (O-273-31826-8) | 1972 |
E. G. ?? · R. E. · R. Gibson · Robert E. · Robert E. G · Robert [Ed] Gibson · Robert (editor) Gibson · Robert G. · Robert Gibson